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Method of forming an ink-jet head
Assignee: Canon Inc
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Filing: 1981-11-30
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Granted: 1983-10-25
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Expires: 2001-11-30
Abstract
Abstract An ink-jet head comprising a multi-arrayed ink flow path and ink discharging nozzles, and the ink flow paths are formed according to photo-forming technique.
Inventors
- 👤 Hiroshi Sugitani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:52
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1601; B41J2/1604; B41J2/1621; B41J2/1623; B41J2/1626; B41J2/1631; B41J2/1632; B41J2/164; B41J2/1642; B41J2/1643; B41J2/1645; B41J2/1646
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
57 words
A method for forming an ink-jet head comprising an ink flow path provided with an element for generating ink-jet pressure and having an ink ejecting nozzle, characterized in that said ink flow path and the nozzle are formed by a technique of "photo-forming" directly on a substrate having previously disposed thereon the element for generating ink-jet pressure.
Claim 2
Independent Claim
57 words
A method for forming an ink-jet head comprising an ink flow path provided with an element for generating ink-jet pressure and having an ink ejecting nozzle, characterized in that said ink flow path and the nozzle are formed by a technique of "photo-forming" directly on a substrate having previously disposed thereon the element for generating ink-jet pressure.
Claim 3
Dependent Claim
28 words
A method for forming an ink-jet head according to claim 1, wherein said substrate includes a material selected from the group consisting of glass, ceramic, plastics and metals.
Claim 4
Dependent Claim
27 words
A method for forming an ink-jet head according to claim 1, wherein said ink flow path has an interior surface having a metal deposited by electric plating.
Claim 5
Dependent Claim
32 words
A method for forming an ink-jet head according to claim 1, wherein said ink flow path has an interior surface having a material selected from the group consisting of nickel and copper.
Claim 6
Dependent Claim
21 words
A method for forming an ink-jet head according to claim 1, wherein said substrate is provided with an electrically conductive film.
References Cited (Backward Citations)
US4189734A
Cited
US4251824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |