US4595822A
Expired / Lapsed
US
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Thermal head and producing process thereof
Assignee: Kyocera Corp
•
Filing: 1984-06-13
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Granted: 1986-06-17
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Expires: 2004-06-13
Abstract
Abstract A thermal head composed of an electrically insulative substrate, a resistive film made of TiO x (0<x<2) formed on the substrate, and an electrode made of a metal such as Au, Al, and Cu etc. The resistive film is produced by an electron beam vapor deposition method employing an apparatus having a vacuum chamber wherein an evaporation source composed of Ti is irradiated with an electron beam to evaporate Ti so as to deposit a resultant TiO x on the substrate.
Inventors
- 👤 Yasuo Nishiguchi
- 👤 Keijiro Minami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:56
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/335; B41J2/33505; B41J2/3351; B41J2/33515; B41J2/3355; B41J2/33555; B41J2/3357; B41J2/3359
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
31 words
A thermal head comprising: a substrate comprising an electrically insulative material; a resistive film substantially composed of TiO x (0<×<2); and an electrode formed on one surface of said resistive film.
Claim 2
Dependent Claim
31 words
A thermal head comprising: a substrate comprising an electrically insulative material; a resistive film substantially composed of TiO x (0<×<2); and an electrode formed on one surface of said resistive film.
Claim 3
Dependent Claim
24 words
A thermal head as claimed in claim 1, wherein the electrode comprises a metal selected from the group consisting of Au, Al, and Cu.
Claim 4
Dependent Claim
51 words
A thermal head as claimed in claim 1 wherein said resistive film includes a portion which is not covered by said electrode, and further comprising a protective film formed on both the electrode and the area of said one surface of the resistive film which is not covered by said electrode.
Claim 5
Dependent Claim
21 words
A thermal head as claimed in claim 1, wherein the resistive film has an electric resistivity within 100 to 850 μΩ.cm.
References Cited (Backward Citations)
US30313A
Cited
US2683673A
Cited
US2920005A
Cited
US2961352A
Cited
US3112222A
Cited
US3218194A
Cited
US3301707A
Cited
USRE30313E
Cited
US3973106A
Cited
US4136274A
Cited
US4296309A
Cited
US4209764A
Cited
US4232213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |