US5126768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing an ink jet recording head
Assignee: Canon Inc
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Filing: 1990-12-21
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Granted: 1992-06-30
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Expires: 2010-12-21
Abstract
Abstract A process for producing a liquid jet recording head comprises the step of laminating a solid layer for formation of a liquid channel, a photosensitive material to be provided so as to cover over the solid layer, a discharge opening plate provided with a discharge opening communicated to the liquid channel in this order on a substrate; the step of irradiating an active energy ray in a pattern on the photosensitive material layer; and the step of removing the solid layer and the uncured portion of said photosensitive material layer corresponding to the pattern to form the liquid channel.
Inventors
- 👤 Minoru Nozawa
- 👤 Tadayoshi Inamoto
- 👤 Hideaki Mashio
- 👤 Masami Yokota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:44
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/164; B41J2/1645; B41J2/1601; B41J2/1604; B41J2/1623; B41J2/1626; B41J2/1631; B41J2/1632; B41J2/1637; B41J2/1639; B41J2/1643; B41J2/1646; B41J2/14; B41J2002/14467
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
142 words
A process for producing a liquid jet recording head, said process comprising the steps of: filling a filling material having photosensitivity to active energy, in concave portions of a convex-concave member, the convex-concave member having convex and concave protions on a same surface of the member and the filling material being provided for forming a liquid channel on the member communicating with a discharge opening for discharging liquid; providing a substrate having a sheilding layer for shielding against the active energy, over the filling material, the shielding layer being provided on the side of the substrate opposing the convex-concave member; irradiating the active energy in a pattern on the filling material by use of the shielding layer; and removing the convex portions of the convex-concave member and a part of the filling material corresponding to the pattern to form the liquid channel.
Claim 2
Dependent Claim
142 words
A process for producing a liquid jet recording head, said process comprising the steps of: filling a filling material having photosensitivity to active energy, in concave portions of a convex-concave member, the convex-concave member having convex and concave protions on a same surface of the member and the filling material being provided for forming a liquid channel on the member communicating with a discharge opening for discharging liquid; providing a substrate having a sheilding layer for shielding against the active energy, over the filling material, the shielding layer being provided on the side of the substrate opposing the convex-concave member; irradiating the active energy in a pattern on the filling material by use of the shielding layer; and removing the convex portions of the convex-concave member and a part of the filling material corresponding to the pattern to form the liquid channel.
Claim 3
Dependent Claim
26 words
A process according to claim 1, wherein during said filling step the filling material is filled until the convex portion of the convex-concave member is covered.
Claim 4
Dependent Claim
23 words
A process according to claim 1, wherein the substrate is formed of a material through which the active energy is capable of penetrating.
Claim 5
Dependent Claim
26 words
A process according to claim 1, wherein the substrate is provided with the discharge opening and the shielding layer is provided corresponding to the discharge opening.
Claim 6
Dependent Claim
39 words
A process according to claim 1, wherein the shielding layer is formed integrally with the substrate, the substrate is provided with the discharge opening, and the discharge opening is provided with the shielding material for shielding the active energy.
Claim 7
Dependent Claim
30 words
A process according to claim 1, wherein the substrate is provided with the discharge opening and the discharge opening is provided with the shielding material for shielding the active energy.
Claim 8
Dependent Claim
27 words
A process according to claim 1, wherein the convex-concave member is provided with an energy generating member for generating energy for discharging liquid from the discharge opening.
Claim 9
Dependent Claim
19 words
A process according to claim 7, wherein the energy generating member is an electrothermal transducer for generating heat energy.
Claim 10
Dependent Claim
15 words
A process according to claim 7, wherein the energy generating member is a piezoelectric element.
Claim 11
Dependent Claim
137 words
A liquid jet recording head produced by a process comprising the steps of: filling a filling material having photosensitivy to active energy, in concave portions of a convex-concave member, the convex-concave member having convex and concave portions on a same surface of the member and the filling material being provided for forming a liquid channel communicating with a discharge opening for discharging liquid; providing a substrate having a shielding layer for shielding against the active energy, over the filling material, the shielding layer being provided on the side of the substrate opposing the convex-concave member; irradiating the active energy in a pattern on the filling material by use of the shielding layer; and removing the convex portions of the convex-concave member and a part of the filling material corresponding to the pattern to form said liquid channel.
Claim 12
Dependent Claim
137 words
A liquid jet recording head produced by a process comprising the steps of: filling a filling material having photosensitivy to active energy, in concave portions of a convex-concave member, the convex-concave member having convex and concave portions on a same surface of the member and the filling material being provided for forming a liquid channel communicating with a discharge opening for discharging liquid; providing a substrate having a shielding layer for shielding against the active energy, over the filling material, the shielding layer being provided on the side of the substrate opposing the convex-concave member; irradiating the active energy in a pattern on the filling material by use of the shielding layer; and removing the convex portions of the convex-concave member and a part of the filling material corresponding to the pattern to form said liquid channel.
Claim 13
Dependent Claim
42 words
A head according to claim 10, wherein a direction that the liquid is supplied to the liquid channel, provided with an energy generating member for generating energy for discharging the liquid, is the same as a direction that the liquid is discharged.
Claim 14
Dependent Claim
42 words
A head according to claim 10, wherein a direction that the liquid is supplied to the liquid channel, provided with an energy generating member for generating energy for discharging the liquid, is substantially perpendicular to a direction that the liquid is discharged.
Claim 15
Dependent Claim
34 words
a liquid jet recording apparatus comprising a liquid jet recording head according to claim 12 and transporting means for transporting a recording medium on which recording is effected by the liquid jet recording head.
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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) | 1995-06-30 | 1995-12-30 | 1996-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-30 | 2003-12-30 | 2004-06-30 | $7700.00 | Window Closed / Lapsed |