US5478606A
Expired / Lapsed
US
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Method of manufacturing ink jet recording head
Assignee: Canon Inc
•
Filing: 1995-02-23
•
Granted: 1995-12-26
•
Expires: 2015-02-23
Abstract
Abstract A method of manufacturing an ink jet recording head, having the steps of forming an ink flow path pattern on a substrate with the use of a dissoluble resin, the substrate having ink ejection pressure generating elements thereon, forming on the ink flow path pattern a coating resin layer, which will serve as ink flow path walls, by dissolving in a solvent a coating resin containing an epoxy resin which is solid at ordinary temperatures, and then solvent-coating the solution on the ink flow path pattern, forming ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements, and dissolving the ink flow path pattern.
Inventors
- 👤 Norio Ohkuma
- 👤 Masashi Miyagawa
- 👤 Genji Inada
- 👤 Hiroaki Toshima
- 👤 Tamaki Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:16
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/07; B41J2/135; B41J2/16; B41J2/1621; B41J2/1632; B41J2/1634; B41J2/1601; B41J2/1603; B41J2/1626; B41J2/1628; B41J2/1631; B41J2/1637; B41J2/1639; B41J2/164; B41J2/1645
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
113 words
A method of manufacturing an ink jet recording head, comprising the steps of: (1) forming an ink flow path pattern on a substrate with the use of a dissoluble resin, the substrate having ink ejection pressure generating elements thereon; (2) forming on the ink flow path pattern a coating resin layer, which will serve as ink flow path walls, by dissolving in a solvent a coating resin containing an epoxy resin which is solid at ordinary temperatures, and then solvent-coating the solution on the ink flow path pattern; (3) forming ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements; and (4) dissolving the ink flow path pattern.
Claim 2
Independent Claim
113 words
A method of manufacturing an ink jet recording head, comprising the steps of: (1) forming an ink flow path pattern on a substrate with the use of a dissoluble resin, the substrate having ink ejection pressure generating elements thereon; (2) forming on the ink flow path pattern a coating resin layer, which will serve as ink flow path walls, by dissolving in a solvent a coating resin containing an epoxy resin which is solid at ordinary temperatures, and then solvent-coating the solution on the ink flow path pattern; (3) forming ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements; and (4) dissolving the ink flow path pattern.
Claim 3
Dependent Claim
28 words
A method of manufacturing an ink jet recording head as claimed in claim 1, wherein the coating resin is a photosensitive resin and contains a cationic photopolymerization initiator.
Claim 4
Dependent Claim
22 words
A method of manufacturing an ink jet recording head as claimed in claim 2, wherein the coating resin contains a reducing agent.
Claim 5
Dependent Claim
24 words
A method of manufacturing an ink jet recording head as claimed in claim 2, wherein the cationic photopolymerization initiator is an aromatic iodonium salt.
Claim 6
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as claimed in claim 3, wherein the reducing agent is copper triflate.
Claim 7
Dependent Claim
26 words
A method of manufacturing an ink jet recording head as claimed in claim 1, wherein the epoxy equivalent of the epoxy resin is 2000 or less.
Claim 8
Dependent Claim
48 words
A method of manufacturing an ink jet recording head as claimed in claim 1, further including a step of dipping the coating resin layer in a solution containing a reducing agent and heating the coating resin layer, after performing the step of dissolving the ink flow path pattern.
Claim 9
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as claimed in claim 7, wherein the reducing agent contains copper ions.
Claim 10
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as claimed in claim 7, wherein the reducing agent contains copper triflate.
Claim 11
Dependent Claim
23 words
A method of manufacturing an ink jet recording head as claimed in claim 2, wherein the ink ejection outlets are formed by photolithography.
Claim 12
Dependent Claim
27 words
A method of manufacturing an ink jet recording head as claimed in claim 1, wherein the ink ejection outlets are formed by dry etching with oxygen plasma.
Claim 13
Dependent Claim
25 words
A method of manufacturing an ink jet recording head as claimed in claim 1, wherein the ink ejection outlets are formed by an excimer laser.
Claim 14
Dependent Claim
29 words
A method of manufacturing an ink jet recording head as claimed in claim 1, wherein the concentration of the coating resin dissolved in the solvent is 30-70 wt. %.
Claim 15
Dependent Claim
29 words
A method of manufacturing an ink jet recording head as claimed in claim 13, wherein the concentration of the coating resin dissolved in the solvent is 40-60 wt. %.
Claim 16
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 11, wherein the coating resin comprises a thermo-setting resin.
Claim 17
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 13, wherein the coating resin comprises a thermoplastic resin.
Claim 18
Independent Claim
125 words
A method of manufacturing an ink jet recording head, comprising the steps of: preparing a substrate having a plurality of ink ejection pressure generating elements thereon; forming an ink flow path pattern on said substrate using a dissoluble resin; forming on the ink flow path pattern a coating resin layer for forming a plurality of ink flow path walls, by dissolving in a solvent a coating resin which is solid at ordinary temperatures, and then spin-coating the solution on the ink flow path pattern; forming a plurality of ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements; and dissolving the ink flow path pattern, wherein a concentration of the coating resin dissolved in the solvent is 30-70 wt. %.
Claim 19
Independent Claim
125 words
A method of manufacturing an ink jet recording head, comprising the steps of: preparing a substrate having a plurality of ink ejection pressure generating elements thereon; forming an ink flow path pattern on said substrate using a dissoluble resin; forming on the ink flow path pattern a coating resin layer for forming a plurality of ink flow path walls, by dissolving in a solvent a coating resin which is solid at ordinary temperatures, and then spin-coating the solution on the ink flow path pattern; forming a plurality of ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements; and dissolving the ink flow path pattern, wherein a concentration of the coating resin dissolved in the solvent is 30-70 wt. %.
Claim 20
Dependent Claim
28 words
A method of manufacturing an ink jet recording head as claimed in claim 17, wherein the coating resin comprises a photosensitive resin and contains a cationic photopolymerization initiator.
Claim 21
Dependent Claim
22 words
A method of manufacturing an ink jet recording head as claimed in claim 18, wherein the coating resin includes a reducing agent.
Claim 22
Dependent Claim
24 words
A method of manufacturing an ink jet recording head as claimed in claim 18, wherein the cationic photopolymerization initiator is an aromatic iodonium salt.
Claim 23
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as claimed in claim 19, wherein the reducing agent is copper triflate.
Claim 24
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 17, wherein the coating resin includes an epoxy resin.
Claim 25
Dependent Claim
27 words
A method of manufacturing an ink jet recording head as claimed in claim 22, wherein the epoxy equivalent of the epoxy resin is not more than 2000.
Claim 26
Dependent Claim
47 words
A method of manufacturing an ink jet recording head as in claim 17, further comprising the steps of: dipping the coating resin layer in a solution containing a reducing agent; and heating the coating resin layer, after performing the step of dissolving the ink flow path pattern.
Claim 27
Dependent Claim
20 words
A method of manufacturing an ink jet recording head as in claim 24, wherein the reducing agent includes copper ions.
Claim 28
Dependent Claim
20 words
A method of manufacturing an ink jet recording head as in claim 24, wherein the reducing agent includes copper triflate.
Claim 29
Dependent Claim
22 words
A method of manufacturing an ink jet recording head as in claim 18, wherein the ink ejection outlets are formed by photolithography.
Claim 30
Dependent Claim
26 words
A method of manufacturing an ink jet recording head as in claim 17, wherein the ink ejection outlets are formed by dry etching with oxygen plasma.
Claim 31
Dependent Claim
24 words
A method of manufacturing an ink jet recording head as in claim 17, wherein the ink ejection outlets are formed by an excimer laser.
Claim 32
Dependent Claim
28 words
A method of manufacturing an ink jet recording head as in claim 17, wherein the concentration of the coating resin dissolved in the solvent is 40-60 wt. %.
Claim 33
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 28, wherein the coating resin comprises a thermosetting resin.
Claim 34
Independent Claim
161 words
A method of manufacturing an ink jet recording head having ink ejection outlets ejecting ink and ink ejection pressure generating elements generating pressure for ejecting ink, distance from said ink ejection outlet to said ink ejection pressure generating element being 20 μm or less, the method comprises the steps of: preparing a substrate having a plurality of ink ejection pressure generating elements thereon; forming an ink flow path pattern on said substrate using a dissoluble resin; forming on the ink flow path pattern a coating resin layer for forming a plurality of ink flow path walls, by dissolving in a solvent a coating resin which is solid at ordinary temperatures, and then spin-coating the solution on the ink flow path pattern; forming a plurality of ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements; and dissolving the ink flow path pattern, wherein a concentration of the coating resin dissolved in the solvent is 30-70 wt.
Claim 35
Independent Claim
161 words
A method of manufacturing an ink jet recording head having ink ejection outlets ejecting ink and ink ejection pressure generating elements generating pressure for ejecting ink, distance from said ink ejection outlet to said ink ejection pressure generating element being 20 μm or less, the method comprises the steps of: preparing a substrate having a plurality of ink ejection pressure generating elements thereon; forming an ink flow path pattern on said substrate using a dissoluble resin; forming on the ink flow path pattern a coating resin layer for forming a plurality of ink flow path walls, by dissolving in a solvent a coating resin which is solid at ordinary temperatures, and then spin-coating the solution on the ink flow path pattern; forming a plurality of ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements; and dissolving the ink flow path pattern, wherein a concentration of the coating resin dissolved in the solvent is 30-70 wt.
Claim 36
Dependent Claim
27 words
A method of manufacturing an ink jet recording head as in claim 32, wherein the coating resin comprises a photosensitive resin and contains a cationic photopolymerization initiator.
Claim 37
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 33, wherein the coating resin includes a reducing agent.
Claim 38
Dependent Claim
23 words
A method of manufacturing an ink jet recording head as in claim 33, wherein the cationic photopolymerization initiator is an aromatic iodonium salt.
Claim 39
Dependent Claim
20 words
A method of manufacturing an ink jet recording head as in claim 34, wherein the reducing agent is copper triflate.
Claim 40
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 32, wherein the coating resin includes an epoxy resin.
Claim 41
Dependent Claim
27 words
A method of manufacturing an ink jet recording head as claimed in claim 37, wherein the epoxy equivalent of the epoxy resin is not more than 2000.
Claim 42
Dependent Claim
47 words
A method of manufacturing an ink jet recording head as in claim 32, further comprising the steps of: dipping the coating resin layer in a solution containing a reducing agent; and heating the coating resin layer, after performing the step of dissolving the ink flow path pattern.
Claim 43
Dependent Claim
20 words
A method of manufacturing an ink jet recording head as in claim 39, wherein the reducing agent includes copper ions.
Claim 44
Dependent Claim
20 words
A method of manufacturing an ink jet recording head as in claim 39, wherein the reducing agent includes copper triflate.
Claim 45
Dependent Claim
22 words
A method of manufacturing an ink jet recording head as in claim 33, wherein the ink ejection outlets are formed by photolithography.
Claim 46
Dependent Claim
26 words
A method of manufacturing an ink jet recording head as in claim 32, wherein the ink ejection outlets are formed by dry etching with oxygen plasma.
Claim 47
Dependent Claim
24 words
A method of manufacturing an ink jet recording head as in claim 32, wherein the ink ejection outlets are formed by an excimer laser.
Claim 48
Dependent Claim
28 words
A method of manufacturing an ink jet recording head as in claim 32, wherein the concentration of the coating resin dissolved in the solvent is 40-60 wt. %.
Claim 49
Dependent Claim
21 words
A method of manufacturing an ink jet recording head as in claim 43, wherein the coating resin comprises a thermosetting resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-25 | 1999-06-26 | 1999-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-25 | 2003-06-26 | 2003-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-25 | 2007-06-26 | 2007-12-26 | $7700.00 | Window Closed / Lapsed |