US5081474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording head having multi-layer matrix wiring
Assignee: Canon Inc
•
Filing: 1990-11-28
•
Granted: 1992-01-14
•
Expires: 2010-11-28
Abstract
Abstract A recording head has a liquid channel defining member for defining a liquid channel communicated to a discharging opening for discharging ink, and a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink filling the liquid channel. A matrix wiring portion is connected electrically to the electricity-heat converting elements, respectively. The matrix wiring portion has a multi-layer constitution having a first wiring and a second wiring. The second wiring is provided through an insulating layer on the first wiring, and the plurality of electricity-heat converting elements are provided on the insulating layer.
Inventors
- 👤 Makoto Shibata
- 👤 Masami Kasamoto
- 👤 Shuji Koyama
- 👤 Sakai Yokoyama
- 👤 Toshihiro Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:45
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1601; B41J2/1604; B41J2/015; B41J2/04; B41J2/045; B41J2/04501; B41J2/04543; B41J2/0458; B41J2/1603; B41J2/1621; B41J2/1626; B41J2/1631; B41J2/164; B41J2/1642; B41J2202/00; B41J2202/01; B41J2202/13
Claims Analysis
Total Claims: 81
Claim 1
Independent Claim
111 words
A recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink, and a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat-generating surface, and a matrix wiring portion connected electrically to said electricity-heat converting elements, respectively, said matrix wiring portion having a multi-layer constitution having a first wiring and a second wiring provided through an insulating layer on said first wiring, and said plurality of electricity-heat converting elements being provided on said insulating layer.
Claim 2
Dependent Claim
111 words
A recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink, and a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat-generating surface, and a matrix wiring portion connected electrically to said electricity-heat converting elements, respectively, said matrix wiring portion having a multi-layer constitution having a first wiring and a second wiring provided through an insulating layer on said first wiring, and said plurality of electricity-heat converting elements being provided on said insulating layer.
Claim 3
Dependent Claim
33 words
A recording head according to claim 1, wherein said discharging openings are is provided at a position so that the ink may be discharged in a direction substantially parallel to the heat-generating surface.
Claim 4
Dependent Claim
42 words
A recording head according to claim 1, wherein said discharging openings are provided at a position so that the ink may be discharged in a direction at an angle between a direction orthogonal to and a direction parallel to the heat-generating surface.
Claim 5
Dependent Claim
24 words
A recording head according to claim 1, further comprising an integral ink tank for housing the ink to be supplied to said liquid channels.
Claim 6
Dependent Claim
20 words
A recording head according to claim 1, wherein said electricity-heat converting elements each have a heat-generating resistance layer and electrodes.
Claim 7
Dependent Claim
28 words
A recording head according to claim 1, wherein an insulating protective layer is provided on the upper part of said electricity-heat converting elements and said matrix wiring portion.
Claim 8
Dependent Claim
16 words
A recording head according to claim 1, further comprising an insulating layer beneath said first wiring.
Claim 9
Dependent Claim
22 words
A recording head according to claim 1 or claim 7, wherein said insulating layers are formed of silicon oxide or silicon nitride.
Claim 10
Dependent Claim
26 words
A recording head according to claim 1, wherein said base member further has a functional element for restricting the current flowing through said electricity-heat converting elements.
Claim 11
Dependent Claim
14 words
A recording head according to claim 9, wherein said functional element is a diode.
Claim 12
Dependent Claim
14 words
A recording head according to claim 9, wherein said functional element is a transistor.
Claim 13
Dependent Claim
31 words
A recording head according to claim 1, wherein said plurality of electricity-heat converting elements are divided into a plurality of groups each of a predetermined number and subjected to block driving.
Claim 14
Dependent Claim
20 words
A recording head according to claim 1, wherein said plurality of electricity-heat converting elements are subjected to time sharing driving.
Claim 15
Dependent Claim
42 words
A recording head according to claim 1, wherein said matrix wiring portion includes N×M individual wirings connecting M of said electricity-heat converting elements with each of N common wirings and connecting N of said converting elements with each of M common wirings.
Claim 16
Dependent Claim
35 words
A recording head according to claim 14, wherein said matrix wiring portion includes one wiring which is connected to N×M electricity-heat converting elements, respectively, and the other wiring which is connected to N×M diodes, respectively.
Claim 17
Dependent Claim
112 words
A recording head comprising; a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging the ink, and a substrate comprising a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, said electricity-heat converting elements being arranged on a heat-accumulating layer, said recording head having a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer.
Claim 18
Dependent Claim
112 words
A recording head comprising; a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging the ink, and a substrate comprising a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, said electricity-heat converting elements being arranged on a heat-accumulating layer, said recording head having a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer.
Claim 19
Dependent Claim
29 words
A recording head according to claim 16, wherein the electroconductive layers provided within said heat-accumulating layer are common wirings connected electrically commonly to said plurality of electricity-heat converting elements.
Claim 20
Dependent Claim
74 words
An article comprising: a substrate; a heat-accumulating layer provided on said substrate; a plurality of electricity-heat converting elements provided on said heat-accumulating layer; and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being constituted of layers formed in the same production step.
Claim 21
Dependent Claim
74 words
An article comprising: a substrate; a heat-accumulating layer provided on said substrate; a plurality of electricity-heat converting elements provided on said heat-accumulating layer; and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being constituted of layers formed in the same production step.
Claim 22
Dependent Claim
18 words
A heater board according to claim 18, wherein said layers are formed of silicon oxide or silicon nitride.
Claim 23
Dependent Claim
22 words
A heater board according to claim 18, further comprising a functional element for restricting the current flowing through said electricity-heat converting elements.
Claim 24
Dependent Claim
104 words
A recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink communicating with discharging openings for discharging the ink; a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat generating surface and a functional element for controlling the current flowing through said electricity-heat converting elements, and a matrix wiring portion having a multi-layer constitution connected electrically to said electricity-heat converting elements and being provided between said plurality of electricity-heat converting elements and said functional element.
Claim 25
Dependent Claim
104 words
A recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink communicating with discharging openings for discharging the ink; a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat generating surface and a functional element for controlling the current flowing through said electricity-heat converting elements, and a matrix wiring portion having a multi-layer constitution connected electrically to said electricity-heat converting elements and being provided between said plurality of electricity-heat converting elements and said functional element.
Claim 26
Dependent Claim
32 words
A recording head according to claim 21, wherein said discharging openings are provided at a position so that the ink may be discharged in a direction substantially parallel to the heat-generating surface.
Claim 27
Dependent Claim
32 words
A recording head according to claim 21, wherein said discharging openings at provided at a position so that the ink may be discharged in a direction substantially crossed with the heat-generating surface.
Claim 28
Dependent Claim
24 words
A recording head according to claim 21, further comprising an integral ink tank for housing the ink to be supplied to said liquid channels.
Claim 29
Dependent Claim
19 words
A recording head according to claim 21, wherein said electricity-heat converting element has a heat-generating resistance layer and electrodes.
Claim 30
Dependent Claim
28 words
A recording head according to claim 21, wherein an insulating protective layer is provided on the upper part of said electricity-heat converting elements and said matrix wiring portion.
Claim 31
Dependent Claim
28 words
A recording head according to claim 21, wherein said recording head has a heat-accumulating layer which also functions as an interlayer insulating layer of said matrix wiring portion.
Claim 32
Dependent Claim
22 words
A recording head according to claim 21 or claim 27, wherein said heat-accumulating layer is formed of silicon oxide or silicon nitride.
Claim 33
Dependent Claim
26 words
A recording head according to claim 21, wherein said base member further has a functional element for restricting the current flowing through said electricity-heat converting elements.
Claim 34
Dependent Claim
14 words
A recording head according to claim 29, wherein said functional element is a diode.
Claim 35
Dependent Claim
14 words
A recording head according to claim 29, wherein said functional element is a transistor.
Claim 36
Dependent Claim
31 words
A recording head according to claim 21, wherein said plurality of electricity-heat converting elements are divided into a plurality of groups each of a predetermined number and subjected to block driving.
Claim 37
Dependent Claim
20 words
A recording head according to claim 21, wherein said plurality of electricity-heat converting elements are subjected to time sharing driving.
Claim 38
Dependent Claim
42 words
A recording head according to claim 21, wherein said matrix wiring portion includes N×M individual wirings connecting M of said electricity-heat converting elements with each of N common wirings and connecting N of said converting elements with each of M common wirings.
Claim 39
Dependent Claim
35 words
A recording head according to claim 34, wherein said matrix wiring portion includes one wiring which is connected to N×M electricity-heat converting elements, respectively, and the other wiring which is connected to N×M diodes, respectively.
Claim 40
Dependent Claim
138 words
A recording device provided with a recording head, said recording head comprising: a plurality of discharging openings for discharging ink; N×M electricity-heat converting elements for generating heat energy to be utilized for discharging the ink through said discharging openings; a matrix wiring portion with a multi-layer constitution having N common wirings each electrically connected to M of said electricity-heat converting elements, N×M individual wirings each electrically connected to one of said electricity-heat converting elements and an insulating layer on one of said N common wirings and said N×M individual wirings, the other of said N common wirings and said N×M individual wirings being provided through said insulating layer, said N×M electricity-heat converting elements being provided on said insulating layer; and a driving means for supplying electrical signals selectively through said N common wirings and said N×M individual wirings.
Claim 41
Dependent Claim
138 words
A recording device provided with a recording head, said recording head comprising: a plurality of discharging openings for discharging ink; N×M electricity-heat converting elements for generating heat energy to be utilized for discharging the ink through said discharging openings; a matrix wiring portion with a multi-layer constitution having N common wirings each electrically connected to M of said electricity-heat converting elements, N×M individual wirings each electrically connected to one of said electricity-heat converting elements and an insulating layer on one of said N common wirings and said N×M individual wirings, the other of said N common wirings and said N×M individual wirings being provided through said insulating layer, said N×M electricity-heat converting elements being provided on said insulating layer; and a driving means for supplying electrical signals selectively through said N common wirings and said N×M individual wirings.
Claim 42
Dependent Claim
23 words
A recording device according to claim 36, wherein said driving means supplies electrical signals for driving said electricity-heat converting elements by time sharing.
Claim 43
Dependent Claim
124 words
A recording device provided with a recording head, said recording head comprising: a plurality of discharging openings for discharging ink; N×M electricity-heat converting elements for generating heat energy to be utilized for discharging the ink through said discharging openings; a functional element portion for controlling the current flowing through said electricity-heat converting elements; a matrix wiring portion with a multi-layer constitution provided between said N×M electricity-heat converting elements and said functional element portion, said matrix wiring portion having N common wirings each electrically connected to M of said electricty-heat converting elements and N×M individual wirings each electrically connected to one of said electricity-heat converting elements; and a driving means for supplying electrical signals selectively through said N common wirings and said N×M individual wirings.
Claim 44
Dependent Claim
124 words
A recording device provided with a recording head, said recording head comprising: a plurality of discharging openings for discharging ink; N×M electricity-heat converting elements for generating heat energy to be utilized for discharging the ink through said discharging openings; a functional element portion for controlling the current flowing through said electricity-heat converting elements; a matrix wiring portion with a multi-layer constitution provided between said N×M electricity-heat converting elements and said functional element portion, said matrix wiring portion having N common wirings each electrically connected to M of said electricty-heat converting elements and N×M individual wirings each electrically connected to one of said electricity-heat converting elements; and a driving means for supplying electrical signals selectively through said N common wirings and said N×M individual wirings.
Claim 45
Dependent Claim
23 words
A recording device according to claim 38, wherein said driving means supplies electrical signals for driving said electricity-heat converting elements by time sharing.
Claim 46
Dependent Claim
94 words
An article comprising: a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to ink supplied in a plurality of liquid channels communicating with discharge openings for discharging the ink, each converting element having a heat-generating surface, and a matrix wiring portion connected electrically to said electricity-heat converting elements, respectively, said matrix wiring portion having a multi-layer constitution having a first wiring and a second wiring provided through an insulating layer on said first wiring, and said plurality of electricity-heat converting elements being provided on said insulating layer.
Claim 47
Dependent Claim
94 words
An article comprising: a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to ink supplied in a plurality of liquid channels communicating with discharge openings for discharging the ink, each converting element having a heat-generating surface, and a matrix wiring portion connected electrically to said electricity-heat converting elements, respectively, said matrix wiring portion having a multi-layer constitution having a first wiring and a second wiring provided through an insulating layer on said first wiring, and said plurality of electricity-heat converting elements being provided on said insulating layer.
Claim 48
Dependent Claim
92 words
An article comprising: a substrate comprising a plurality of electricity-heat converting elements for generating heat to be transmitted to ink supplied in a plurality of liquid channels communicating with discharging openings for discharging the ink, said electricity-heat converting elements being arranged on a heat-accumulating layer; and having a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer.
Claim 49
Dependent Claim
92 words
An article comprising: a substrate comprising a plurality of electricity-heat converting elements for generating heat to be transmitted to ink supplied in a plurality of liquid channels communicating with discharging openings for discharging the ink, said electricity-heat converting elements being arranged on a heat-accumulating layer; and having a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer.
Claim 50
Dependent Claim
109 words
A recording device comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging the ink; and a substrate comprising a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, said electricity-heat converting elements being arranged on a heat-accumulating layer; and a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer.
Claim 51
Dependent Claim
109 words
A recording device comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging the ink; and a substrate comprising a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, said electricity-heat converting elements being arranged on a heat-accumulating layer; and a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer.
Claim 52
Dependent Claim
15 words
A recording device according to claim 42, further comprising means for carrying a recording medium.
Claim 53
Dependent Claim
24 words
A recording device according to claim 42, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 54
Dependent Claim
100 words
A recording head comprising: a substrate; a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink; a heat-accumulating layer provided on said substrate; a plurality of electricity-heat converting elements provided on said heat-accumulating layer; and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being constituted of layers formed in the same production step.
Claim 55
Dependent Claim
100 words
A recording head comprising: a substrate; a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink; a heat-accumulating layer provided on said substrate; a plurality of electricity-heat converting elements provided on said heat-accumulating layer; and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being constituted of layers formed in the same production step.
Claim 56
Dependent Claim
100 words
A recording device comprising: a substrate; a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink; a heat-accumulating layer provided on said substrate; a plurality of electricity-heat converting elements provided on said heat-accumulating layer; and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being constituted of layers formed in the same production step.
Claim 57
Dependent Claim
100 words
A recording device comprising: a substrate; a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink; a heat-accumulating layer provided on said substrate; a plurality of electricity-heat converting elements provided on said heat-accumulating layer; and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being constituted of layers formed in the same production step.
Claim 58
Dependent Claim
15 words
A recording device according to claim 46, further comprising means for carrying a recording medium.
Claim 59
Dependent Claim
24 words
A recording device according to claim 46, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 60
Dependent Claim
87 words
An article comprising: a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to supplied ink in a plurality of liquid channels communicating with discharging openings for discharging ink, each converting element having a heat generating surface and a functional element for controlling the current flowing through said electricity-heat converting elements, and a matrix wiring portion having a multi-layer constitution connected electrically to said electricity-heat converting elements and being provided between said plurality of electricity-heat converting elements and said functional element.
Claim 61
Dependent Claim
87 words
An article comprising: a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to supplied ink in a plurality of liquid channels communicating with discharging openings for discharging ink, each converting element having a heat generating surface and a functional element for controlling the current flowing through said electricity-heat converting elements, and a matrix wiring portion having a multi-layer constitution connected electrically to said electricity-heat converting elements and being provided between said plurality of electricity-heat converting elements and said functional element.
Claim 62
Dependent Claim
15 words
A recording device according to claim 36, further comprising means for carrying a recording medium.
Claim 63
Dependent Claim
24 words
A recording device according to claim 36, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 64
Dependent Claim
15 words
A recording device according to claim 38, further comprising means for carrying a recording medium.
Claim 65
Dependent Claim
24 words
A recording device according to claim 38, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 66
Dependent Claim
129 words
A recording device comprising: a recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink, and a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat-generating surface, and a matrix wiring portion connected electrically to said electricity-heat converting elements, respectively, said matrix wiring portion having a multi-layer constitution having a first wiring and a second wiring provided through an insulating layer on said first wiring, and said plurality of electricity-heat converting elements being provided on said insulating layer; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 67
Dependent Claim
129 words
A recording device comprising: a recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink, and a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat-generating surface, and a matrix wiring portion connected electrically to said electricity-heat converting elements, respectively, said matrix wiring portion having a multi-layer constitution having a first wiring and a second wiring provided through an insulating layer on said first wiring, and said plurality of electricity-heat converting elements being provided on said insulating layer; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 68
Dependent Claim
15 words
A recording device according to claim 54, further comprising means for carrying a recording medium.
Claim 69
Dependent Claim
24 words
A recording device according to claim 54, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 70
Dependent Claim
122 words
A recording device comprising: a recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink communicating with discharging openings for discharging the ink, a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat generating surface and a functional element for controlling the current flowing through said electricity-heat converting elements, and a matrix wiring portion having a multi-layer constitution connected electrically to said electricity-heat converting elements and being provided between said plurality of electricity-heat converting elements and said functional elements; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 71
Dependent Claim
122 words
A recording device comprising: a recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink communicating with discharging openings for discharging the ink, a base member having a plurality of electricity-heat converting elements for generating heat to be transmitted to the ink in said liquid channels, each converting element having a heat generating surface and a functional element for controlling the current flowing through said electricity-heat converting elements, and a matrix wiring portion having a multi-layer constitution connected electrically to said electricity-heat converting elements and being provided between said plurality of electricity-heat converting elements and said functional elements; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 72
Dependent Claim
15 words
A recording device according to claim 57, further comprising means for carrying a recording medium.
Claim 73
Dependent Claim
24 words
A recording device according to claim 57, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 74
Dependent Claim
131 words
A recording device comprising: a recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging the ink, and a substrate comprising a plurality of electricity-heat heat converting elements for generating heat to be transmitted to the ink in said liquid channels, said electricity-heat converting elements being arranged on a heat-accumulating layer, said recording head having a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 75
Dependent Claim
131 words
A recording device comprising: a recording head comprising: a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging the ink, and a substrate comprising a plurality of electricity-heat heat converting elements for generating heat to be transmitted to the ink in said liquid channels, said electricity-heat converting elements being arranged on a heat-accumulating layer, said recording head having a matrix wiring portion arranged on said substrate and electrically connected to said electricity-heat converting elements respectively, said matrix wiring portion having a multi-layer wiring structure comprising at least two electroconductive layers, at least one of said electroconductive layers being provided within said heat-accumulating layer; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 76
Dependent Claim
15 words
A recording device according to claim 60, further comprising means for carrying a recording medium.
Claim 77
Dependent Claim
24 words
A recording device according to claim 60, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
Claim 78
Dependent Claim
118 words
A recording device comprising: a recording head comprising: a substrate, a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink, a heat-accumulating layer provided on said substrate, a plurality of electricity-heat converting elements provided on said heat-accumulating layer, and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being a single layer formed in the same production step; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 79
Dependent Claim
118 words
A recording device comprising: a recording head comprising: a substrate, a liquid channel defining member for defining a plurality of liquid channels to be supplied with ink and communicating with discharging openings for discharging ink, a heat-accumulating layer provided on said substrate, a plurality of electricity-heat converting elements provided on said heat-accumulating layer, and a matrix wiring portion connected electrically to said electricity-heat converting elements, wherein said matrix wiring portion has a multi-layer structure comprising at least two electroconductive layers and an insulating layer provided therebetween, and said heat-accumulating layer and said insulating layer being a single layer formed in the same production step; and a driving means for supplying electrical signals selectively to said electricity-heat converting elements.
Claim 80
Dependent Claim
15 words
A recording device according to claim 63, further comprising means for carrying a recording medium.
Claim 81
Dependent Claim
24 words
A recording device according to claim 63, wherein said recording device is one of a copying machine, facsimile machine, word processor, and a printer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |