US4399444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive recording head
Assignee: Fujifilm Business Innovation Corp
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Filing: 1981-12-16
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Granted: 1983-08-16
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Expires: 2001-12-16
Abstract
Abstract A thermal recording head is formed by alternately laminating conductive and insulating layers and then disposing a heat generating resistive element along a side surface of the laminated body in contact with each conducting layer and extending in a direction transverse to the planes of the laminating layers.
Inventors
- 👤 Haruhiko Moriguchi
- 👤 Takashi Ohmori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:42
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/10; B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/345
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising conductive and insulating layers alternately laminated by a chemical vapor deposition process, or the like, to form a laminated body, said laminated body having a side surface extending in a direction not parallel to the planes of said layers; and said resistive element comprising a resistive material extending along said side surface and in contact with each of said conductive layers.
Claim 2
Dependent Claim
96 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising conductive and insulating layers alternately laminated by a chemical vapor deposition process, or the like, to form a laminated body, said laminated body having a side surface extending in a direction not parallel to the planes of said layers; and said resistive element comprising a resistive material extending along said side surface and in contact with each of said conductive layers.
Claim 3
Dependent Claim
30 words
A thermal recording head as claimed in claim 1, wherein said side surface extends at an oblique angle with respect to a line perpendicular to the planes of said layers.
Claim 4
Dependent Claim
18 words
A thermal recording head as claimed in claim 1, wherein said side surface is perpendicular to said layers.
Claim 5
Dependent Claim
19 words
A thermal recording head as claimed in claim 1, wherein said conductive layers are recessed from said side surface.
Claim 6
Dependent Claim
30 words
A thermal recording head as claimed in claim 1, wherein said resistive material as it crosses each insulating layer has a substantially convex surface facing away from said laminated body.
Claim 7
Dependent Claim
94 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising a laminated body of alternately laminated and substantially planar insulating and conductive layers, said laminated body having a side surface extending at an oblique angle with respect to a line perpendicular to the planes of said layers, and a resistive material as said resistive element extending along said side surface and in contact with each of said conductive layers.
Claim 8
Dependent Claim
94 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising a laminated body of alternately laminated and substantially planar insulating and conductive layers, said laminated body having a side surface extending at an oblique angle with respect to a line perpendicular to the planes of said layers, and a resistive material as said resistive element extending along said side surface and in contact with each of said conductive layers.
Claim 9
Dependent Claim
100 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising a laminated body formed of alternately laminated and substantially planar insulating and conductive layers, said laminated body having a side surface extending in a direction not parallel to the planes of said layers, said conductive layers being recessed from said side surface, and a resistive material as said resistive element extending along said side surface and in contact with each of said recessed conductive layers.
Claim 10
Dependent Claim
100 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising a laminated body formed of alternately laminated and substantially planar insulating and conductive layers, said laminated body having a side surface extending in a direction not parallel to the planes of said layers, said conductive layers being recessed from said side surface, and a resistive material as said resistive element extending along said side surface and in contact with each of said recessed conductive layers.
Claim 11
Dependent Claim
137 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising a laminated body formed of alternately laminated and substantially planar insulating and conductive layers, said laminated body having a side surface extending in a direction not parallel to the planes of said layers, and a resistive material as said resistive element extending along said side surface and in contact with each of said conductive layers, said resistive material as it crosses each said insulating layer extending further away from said side surface of said laminated body than in portions of said resistive material between said insulating layers, whereby said resistive material has a substantially convex surface facing away from said laminated body.
Claim 12
Dependent Claim
137 words
A thermal recording head of the type including at least one resistive element having first and second electrodes connected thereto for providing current through said resistive element to thereby generate heat, said recording head comprising a laminated body formed of alternately laminated and substantially planar insulating and conductive layers, said laminated body having a side surface extending in a direction not parallel to the planes of said layers, and a resistive material as said resistive element extending along said side surface and in contact with each of said conductive layers, said resistive material as it crosses each said insulating layer extending further away from said side surface of said laminated body than in portions of said resistive material between said insulating layers, whereby said resistive material has a substantially convex surface facing away from said laminated body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |