US4514736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal head
Assignee: Fujifilm Business Innovation Corp
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Filing: 1983-01-05
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Granted: 1985-04-30
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Expires: 2003-01-05
Abstract
Abstract A thermal head is provided with first and second sets of parallel bar-shaped electrodes which are arranged in slightly spaced parallel planes and cross over one another. Individual crossing resistors are selectively energized to produce a heat generating dot which may be reproduced on a heat sensitive media.
Inventors
- 👤 Haruhiko Moriguchi
- 👤 Toshiharu Inui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:55
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/345
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A thermal head comprising, first bar-shaped heat generating resistors arranged in a first plane in a manner so as to be substantially parallel to one another; and second bar-shaped heat generating resistors arranged in a second plane parallel to said first plane and disposed in a manner so as to be substantially parallel to one another; said first bar-shaped heat generating resistors crossing over said second bar-shaped heat generating resistors to provide heat generating dots at the crossing points; wherein said first and second bar-shaped resistors cross obliquely, such that crossing points of one line are offset from crossing points of an adjacent line.
Claim 2
Dependent Claim
104 words
A thermal head comprising, first bar-shaped heat generating resistors arranged in a first plane in a manner so as to be substantially parallel to one another; and second bar-shaped heat generating resistors arranged in a second plane parallel to said first plane and disposed in a manner so as to be substantially parallel to one another; said first bar-shaped heat generating resistors crossing over said second bar-shaped heat generating resistors to provide heat generating dots at the crossing points; wherein said first and second bar-shaped resistors cross obliquely, such that crossing points of one line are offset from crossing points of an adjacent line.
Claim 3
Dependent Claim
119 words
A thermal head comprising, first bar-shaped heat generating resistors arranged in a first plane in a manner so as to be substantially parallel to one another; and second bar-shaped heat generating resistors arranged in a second plane parallel to said first plane and disposed in a manner so as to be substantially parallel to one another; said first bar-shaped heat generating resistors crossing over said second bar-shaped heat generating resistors to provide heat generating dots at the crossing points, said thermal head further including a substrate supporting one of said first and second bar-shaped resistors, and a protective layer overlying said substrate, and wherein the other of said first and second bar-shaped resistors are embedded in said protective layer.
Claim 4
Dependent Claim
119 words
A thermal head comprising, first bar-shaped heat generating resistors arranged in a first plane in a manner so as to be substantially parallel to one another; and second bar-shaped heat generating resistors arranged in a second plane parallel to said first plane and disposed in a manner so as to be substantially parallel to one another; said first bar-shaped heat generating resistors crossing over said second bar-shaped heat generating resistors to provide heat generating dots at the crossing points, said thermal head further including a substrate supporting one of said first and second bar-shaped resistors, and a protective layer overlying said substrate, and wherein the other of said first and second bar-shaped resistors are embedded in said protective layer.
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) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |