US4394670A
Expired / Lapsed
US
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Ink jet head and method for fabrication thereof
Assignee: Canon Inc
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Filing: 1981-12-29
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Granted: 1983-07-19
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Expires: 2001-12-29
Abstract
Abstract An ink jet head comprises an ink flow path formed by laminating cured films or photosensitive compositions and an ink discharging orifice, at least the ink discharging orifice region being composed of the cured films. A method for fabrication of an ink-jet head comprises forming a first film of a cured photosensitive resin on a surface of a substrate on which an ink discharge pressure generating element is arranged, produced an ink flow path with a second film of a cured photosensitive resin formed on the first film, further disposing a third film of a cured photosensitive resin on the second film, and forming an ink discharging orifice connected to the ink flow path, with the said first, second and third films of cured photosensitive resins.
Inventors
- 👤 Hiroshi Sugitani
- 👤 Hiroto Matsuda
- 👤 Koichi Kimura
- 👤 Masami Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:30
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1623; B41J2/1601; B41J2/1604; B41J2/1626; B41J2/1631; B41J2/1632; B41J2/1637; B41J2/1639; B41J2/164
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
34 words
An ink-jet head comprising an ink flow path formed by laminating cured films of photosensitive compositions and an ink discharging orifice, at least the ink discharging orifice region being composed of the cured films.
Claim 2
Dependent Claim
34 words
An ink-jet head comprising an ink flow path formed by laminating cured films of photosensitive compositions and an ink discharging orifice, at least the ink discharging orifice region being composed of the cured films.
Claim 3
Dependent Claim
13 words
An ink-jet head according to claim 1, wherein said compositions are photosensitive resins.
Claim 4
Dependent Claim
15 words
An ink-jet head according to claim 1, wherein said composition is a dry film photoresist.
Claim 5
Dependent Claim
22 words
An ink-jet head according to claim 1, wherein said composition is in a form of film having a thickness of 25-100 microns.
Claim 6
Dependent Claim
21 words
An ink-jet head according to claim 1, wherein an ink discharging pressure generating element is disposed in said ink flow path.
Claim 7
Dependent Claim
20 words
An ink-jet head according to claim 1, wherein said ink flow path is in communication with an ink discharging port.
Claim 8
Dependent Claim
16 words
An ink-jet head according to claim 1, wherein a plurality of said ink paths are provided.
Claim 9
Dependent Claim
101 words
An ink-jet head having an ink flow path and an ink discharging orifice connected to the ink flow path comprising a substrate having an ink discharge pressure generating element, a first film of a cured photosensitive composition laminated to the substrate with at least the ink discharging pressure generating element is not covered with the first film, a second film of a cured photosensitive composition laminated to the first film and a third film of a cured photosensitive composition laminated to the second film, the first, second and the third films defining the ink flow path and the ink discharging orifice.
Claim 10
Dependent Claim
101 words
An ink-jet head having an ink flow path and an ink discharging orifice connected to the ink flow path comprising a substrate having an ink discharge pressure generating element, a first film of a cured photosensitive composition laminated to the substrate with at least the ink discharging pressure generating element is not covered with the first film, a second film of a cured photosensitive composition laminated to the first film and a third film of a cured photosensitive composition laminated to the second film, the first, second and the third films defining the ink flow path and the ink discharging orifice.
Claim 11
Dependent Claim
14 words
An ink-jet head according to claim 8, wherein said composition is a photosensitive resin.
Claim 12
Dependent Claim
15 words
An ink-jet head according to claim 8, wherein said composition is a dry film photoresist.
Claim 13
Dependent Claim
22 words
An ink-jet head according to claim 8, wherein said composition is in a form of film having a thickness of 25-100 microns.
Claim 14
Dependent Claim
19 words
An ink-jet head according to claim 8, wherein said ink flow path is defined in a cured resin film.
Claim 15
Dependent Claim
21 words
An ink-jet head according to claim 8, wherein an ink discharging pressure generating element is disposed in said ink flow path.
Claim 16
Dependent Claim
17 words
An ink-jet head according to claim 8, wherein a plurality of said ink flow paths are provided.
Claim 17
Independent Claim
94 words
A method for fabrication of an ink jet head, which comprises forming a first film of a cured photosensitive resin on a surface of a substrate on which an ink discharge pressure generating element is arranged, producing an ink flow path with a second film of a cured photosensitive resin formed on the first film, disposing a third film of a cured photosensitive resin on the second film, and forming an ink discharging orifice connected to the ink flow path, with the said first, second and third films being composed of cured photosensitive resins.
Claim 18
Independent Claim
94 words
A method for fabrication of an ink jet head, which comprises forming a first film of a cured photosensitive resin on a surface of a substrate on which an ink discharge pressure generating element is arranged, producing an ink flow path with a second film of a cured photosensitive resin formed on the first film, disposing a third film of a cured photosensitive resin on the second film, and forming an ink discharging orifice connected to the ink flow path, with the said first, second and third films being composed of cured photosensitive resins.
Claim 19
Dependent Claim
16 words
A method as set forth in claim 15, wherein said resin is a dry film photoresist.
Claim 20
Dependent Claim
22 words
A method as set forth in claim 15, wherein said resin is in a form of film having thickness of 25-100 microns.
Claim 21
Dependent Claim
22 words
A method as set forth in claim 15, wherein an ink discharging pressure generating element is disposed in said ink flow path.
Claim 22
Dependent Claim
18 words
A method as set forth in claim 15, wherein a plurality of said ink flow paths are provided.
References Cited (Backward Citations)
US4243994A
Cited
US4330787A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
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