US4666823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing ink jet recording head
Assignee: Canon Inc
•
Filing: 1985-08-02
•
Granted: 1987-05-19
•
Expires: 2005-08-02
Abstract
Abstract A method for producing an ink jet head comprises providing ink pathways formed of a photosensitive resin on the surface of a substrate and laminating covering over said pathways, and said photosensitive resin is exposed to light and the unexposed portion thereof is removed, the covering is placed over said photosensitive resin, and thereafter said photosensitive resin is subjected to the curing treatment.
Inventors
- 👤 Masami Yokota
- 👤 Hiroshi Sugitani
- 👤 Tadayoshi Inamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:29
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1631; B41J2/1601; B41J2/1604; B41J2/1632; B41J2/164
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
68 words
A method for producing an ink jet head, which comprises providing ink pathways formed from a photosensitive resin on the surface of a substrate and laminating a covering over said pathways, characterized in that said photosensitive resin is imagewise exposed to light and said unexposed portion thereof is removed, the covering is placed over said photosensitive resin, and thereafter said photosensitive resin is subjected to a curing treatment.
Claim 2
Independent Claim
68 words
A method for producing an ink jet head, which comprises providing ink pathways formed from a photosensitive resin on the surface of a substrate and laminating a covering over said pathways, characterized in that said photosensitive resin is imagewise exposed to light and said unexposed portion thereof is removed, the covering is placed over said photosensitive resin, and thereafter said photosensitive resin is subjected to a curing treatment.
Claim 3
Dependent Claim
15 words
A method according to claim 1, wherein said photosensitive resin is a dry film photoresist.
Claim 4
Dependent Claim
34 words
A method according to claim 1, wherein said photosensitive resin after removing said exposed portion thereof is subjected to said curing treatment by photo-polymerization through a board of UV transparent material as said covering.
Claim 5
Dependent Claim
42 words
A method according to claim 1, wherein said photosensitive resin, after removal of said unexposed portion thereof, is subjected to said curing treatment by thermo-curing and wherein said covering comprises a board comprising a material selected from metals, ceramics and the like.
Claim 6
Dependent Claim
24 words
A method according to claim 1, wherein said photosensitive resin film on said substrate is formed with a liquid resin by a squeegeeing process.
Claim 7
Dependent Claim
12 words
A method according to claim 1, wherein said curing is thermal curing.
Claim 8
Dependent Claim
26 words
A method according to claim 6, said thermal curing takes place at a temperature of 130° C. to 250° C. for 30 minutes to 6 hours.
Claim 9
Dependent Claim
18 words
A method according to claim 1, wherein said curing is a combination of ultraviolet irradiation and thermal curing.
Claim 10
Dependent Claim
45 words
A method according to claim 8, wherein said ultraviolet irradiation takes place at an integrated dosage of 1 w/cm 2 to 20 w/cm 2 and said thermal curing takes place at a temperature of 130° C. to 250° C. for 30 minutes to 6 hours.
Claim 11
Dependent Claim
13 words
A method according to claim 1, wherein said covering has a roughened surface.
Claim 12
Dependent Claim
23 words
A method according to claim 1, wherein said covering is laminated over said pathways after having been treated with a silane coupling agent.
Claim 13
Dependent Claim
14 words
A method according to claim 1, wherein said curing takes place with ultraviolet irradiation.
Claim 14
Dependent Claim
25 words
A method according to claim 12, wherein said ultraviolet irradiation takes place at an integrated dosage of 1 w/cm 2 to 20 w/cm 2 .
Claim 15
Dependent Claim
32 words
A method according to claim 1, which further comprises treating at least part of said covering that contact a surface of the photosensitive resin to provide a roughened surface on said covering.
Claim 16
Dependent Claim
29 words
A method according to claim 1, which further comprises treating at least part of said covering that contacts a surface of the photosensitive resin with a silane coupling agent.
References Cited (Backward Citations)
US4167669A
Cited
US4417251A
Cited
US4394670A
Cited
US4437100A
Cited
US4521787A
Cited
US4609427A
Cited
US4443533A
Cited
US4509063A
Cited
US4570167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |