US5287622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparation of a substrate for a heat-generating device, method for preparation of a heat-generating substrate, and method for preparation of an ink jet recording head
Assignee: Canon Inc
•
Filing: 1992-09-02
•
Granted: 1994-02-22
•
Expires: 2012-09-02
Abstract
Abstract Method for preparing a substrate for a heat generating device, such a heat generating substrate and an ink jet recording head having such substrate, includes the steps of irradiating a high density energy stream on the surface of a base material on which is provided a material capable of forming an insulating layer by heating, and forming a layer having insulating properties on the surface of said base material while melting the material by heating.
Inventors
- 👤 Haruhiko Terai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:26
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14088; B41J2/14112; B41J2/14129; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; B41J2/16; B41J2/1601; B41J2/1604; B41J2/1621; B41J2/1623; B41J2/1626; B41J2/1632; B41J2/1634; B41J2/164; B41J2/1642; B41J2/1646; C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C26/00; C23C26/02; B23K35/32; B23K35/327; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49401
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
69 words
A method for preparing a laminated product, the method comprising the steps of: irradiating high density energy onto a surface of a plate member so that the surface irradiated with said high density energy enters a molten state and solidifies to form an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm; and mounting an energy transducing device on said insulating layer.
Claim 2
Independent Claim
69 words
A method for preparing a laminated product, the method comprising the steps of: irradiating high density energy onto a surface of a plate member so that the surface irradiated with said high density energy enters a molten state and solidifies to form an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm; and mounting an energy transducing device on said insulating layer.
Claim 3
Dependent Claim
37 words
A method for preparing a laminated product according to claim 1, wherein said energy transducing device is a heat-generating device having a heat-generating resistance layer and a pair of electrodes electrically connected to said heat-generating resistance layer.
Claim 4
Dependent Claim
51 words
A method for preparing a laminated product according to claim 1, wherein a material capable of forming said insulating layer by irradiation with said high density energy is provided on the surface of said plate member, said material being a powdery material having particle sizes of 0.1 μm to 10 μm.
Claim 5
Dependent Claim
41 words
A method for preparing a laminated product according to claim 3, wherein said material is at least one of the materials selected from the group consisting of Al, Ti, Mg, Al 2 O 3 , Si 3 N 4 and SiC.
Claim 6
Dependent Claim
64 words
A method for preparing a laminated product according to claim 1, wherein said plate member is formed of a material capable of forming said insulating layer by heating the surface of said plate member through irradiation with said high density energy, said material being selected from the group consisting of Al, Ti, Mg, Al 2 O 3 , Si 3 N 4 and SiC.
Claim 7
Dependent Claim
28 words
A method for preparing a laminated product according to claim 1, wherein irradiation of said surface by said high density energy is performed in an atmosphere containing oxygen.
Claim 8
Dependent Claim
28 words
A method for preparing a laminated product according to claim 1, wherein irradiation of said surface by said high density energy is performed in an atmosphere containing nitrogen.
Claim 9
Dependent Claim
37 words
A method for preparing a laminated product according to claim 1, wherein irradiation of said high density energy is performed at a central portion of said plate member at lower power density than at end portions thereof.
Claim 10
Dependent Claim
41 words
A method for preparing a laminated product according to claim 1, wherein said high density energy is provided by at least one of a laser beam, an electron beam, a tungsten inert gas arc and condensed light from a halogen lamp.
Claim 11
Independent Claim
132 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating high density energy onto a material provided on a surface of a base member for forming an insulating layer on said base member, wherein said material enters a molten state and solidifies to form on said base member an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm or less; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base member, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 12
Independent Claim
132 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating high density energy onto a material provided on a surface of a base member for forming an insulating layer on said base member, wherein said material enters a molten state and solidifies to form on said base member an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm or less; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base member, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 13
Dependent Claim
67 words
A method for preparing an ink jet recording head according to claim 10, wherein said electrothermal transducing device comprises a plurality of heat-generating devices for generating heat energy for discharging ink from said liquid pathway, each said heat-generating device having a heat-generating resistance layer and a pair of electrodes electrically connected to said heat-generating resistance layer, wherein said heat-generating portion is formed between said pair of electrodes.
Claim 14
Dependent Claim
42 words
A method for preparing an ink jet recording head according to claim 10, wherein said material provided on the surface of said base member for forming said insulating layer is a powdery material having particle sizes of 0.1 μm to 10 μm.
Claim 15
Dependent Claim
43 words
A method for preparing an ink jet recording head according to claim 12, wherein said material is at least one of the materials selected from the group consisting of Al, Ti, Mg, Al 2 O 3 , Si 3 N 4 and SiC.
Claim 16
Dependent Claim
27 words
A method for preparing an ink jet recording head according to claim 10, wherein irradiation by said high density energy is performed in an atmosphere containing oxygen.
Claim 17
Dependent Claim
27 words
A method for preparing an ink jet recording head according to claim 10, wherein irradiation by said high density energy is performed in an atmosphere containing nitrogen.
Claim 18
Dependent Claim
32 words
A method for preparing an ink jet recording head according to claim 10, further comprising the step of forming a protective layer on said electrothermal transducing device after said step of mounting.
Claim 19
Independent Claim
116 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating high density energy onto a base material so that a surface portion of said base material enters a molten state and solidifies to form an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base material, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 20
Independent Claim
116 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating high density energy onto a base material so that a surface portion of said base material enters a molten state and solidifies to form an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base material, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 21
Dependent Claim
67 words
A method for preparing an ink jet recording head according to claim 17, wherein said electrothermal transducing device comprises a plurality of heat-generating devices for generating heat energy for discharging ink from said liquid pathway, each said heat-generating device having a heat-generating resistance layer and a pair of electrodes electrically connected to said heat-generating resistance layer, wherein said heat-generating portion is formed between said pair of electrodes.
Claim 22
Dependent Claim
50 words
A method for preparing an ink jet recording head according to claim 17, wherein said surface portion of said base material is formed of at least one of the materials selected from the group consisting of Al, Ti, Mg, Al 2 O 3 , Si 3 N 4 and SiC.
Claim 23
Dependent Claim
27 words
A method for preparing an ink jet recording head according to claim 17, wherein irradiation by said high density energy is performed in an atmosphere containing oxygen.
Claim 24
Dependent Claim
27 words
A method for preparing an ink jet recording head according to claim 17, wherein irradiation by said high density energy is performed in an atmosphere containing nitrogen.
Claim 25
Dependent Claim
31 words
A method for preparing an ink jet recording head according to claim 17, further comprising the step of forming a protective layer on said electrothermal transducing device after said mounting step.
Claim 26
Independent Claim
70 words
A method for preparing a laminated product, the method comprising the steps of: irradiating a surface of a plate member with a laser beam having a power density on the order of 10 5 W/cm 2 , thereby forming a smooth insulating area with a surface roughness of not more than Ra0.1 μm on the surface of said plate member; and mounting an energy transducing device on said insulating area.
Claim 27
Independent Claim
70 words
A method for preparing a laminated product, the method comprising the steps of: irradiating a surface of a plate member with a laser beam having a power density on the order of 10 5 W/cm 2 , thereby forming a smooth insulating area with a surface roughness of not more than Ra0.1 μm on the surface of said plate member; and mounting an energy transducing device on said insulating area.
Claim 28
Independent Claim
127 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating a material provided on a base member for forming an insulating layer with a laser beam having a power density on the order of 10 5 W/cm 2 , thereby forming an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm on said base member; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base member, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 29
Independent Claim
127 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating a material provided on a base member for forming an insulating layer with a laser beam having a power density on the order of 10 5 W/cm 2 , thereby forming an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm on said base member; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base member, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 30
Independent Claim
126 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating a surface portion of a base material with a laser beam having a power density on the order of 10 5 W/cm 2 , thereby forming on the surface portion of said base material an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base material, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to the heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Claim 31
Independent Claim
126 words
A method for preparing an ink jet recording head, the method comprising the steps of: irradiating a surface portion of a base material with a laser beam having a power density on the order of 10 5 W/cm 2 , thereby forming on the surface portion of said base material an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 μm; mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base material, said insulating layer and said electrothermal transducing device; and bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to the heat-generating portion of said electrothermal transducing device to form a liquid pathway.
References Cited (Backward Citations)
US4723129A
Cited
US4243867A
Cited
US4218494A
Cited
US4322601A
Cited
US4458256A
Cited
US4313124A
Cited
US4336548A
Cited
US4457972A
Cited
US4596994A
Cited
US4725859A
Cited
US4496607A
Cited
US4710253A
Cited
US4663640A
Cited
US4675065A
Cited
US4738602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |