US4881318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a liquid jet recording head
Assignee: Canon Inc
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Filing: 1988-08-05
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Granted: 1989-11-21
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Expires: 2008-08-05
Abstract
Abstract A liquid jet recording head comprises a recording head unit for discharging liquid from an orifice by applying an energy to the liquid from an energy generator mounted on a substrate in order to form flying droplets, and a substrate member having an external wiring unit for supplying an electrical signal to said energy generator; wherein the electrical connection area for electrically connecting said energy generator and said external wiring unit is integrally molded by an insulative sealing material. This is a division of application Ser. No. 077,090, filed July 23, 1987, which is a continuation of application Ser. No. 740,494, filed June 3, 1985, now abandoned.
Inventors
- 👤 Hirokazu Komuro
- 👤 Masami Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:26
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1623; B41J2/14; B41J2/14016; B41J2/14072; B41J2/1601; B41J2/1603; B41J2/1625; B41J2/1626; B41J2/1631; B41J2/1637; B41J2/164; B41J2/1642; B41J2/1643; B41J2/1645; B41J2/1646; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121; Y10T29/49169; Y10T29/49171; Y10T29/49428; Y10T29/49432
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A method for manufacturing a liquid jet recording head, comprising the steps of: providing a recording head unit including a support having an energy generator thereon and a cover attached to said support to form therewith a liquid chamber, wherein said cover has an orifice therein opposed to said energy generator for discharging liquid in said liquid chamber from said orifice by operating said energy generator; providing a substrate member comprising a frame having a wiring unit including at least one connector; electrically connecting electrodes for supplying an electrical signal to said energy generator to generate energy used to discharge flying droplets and said wiring unit for supplying the electrical signal to said electrodes; and molding said electrodes, said external wiring unit, said recording head unit and said substrate member into an integral unit with an insulative sealing material, wherein said connector extends externally of said integral unit.
Claim 2
Independent Claim
148 words
A method for manufacturing a liquid jet recording head, comprising the steps of: providing a recording head unit including a support having an energy generator thereon and a cover attached to said support to form therewith a liquid chamber, wherein said cover has an orifice therein opposed to said energy generator for discharging liquid in said liquid chamber from said orifice by operating said energy generator; providing a substrate member comprising a frame having a wiring unit including at least one connector; electrically connecting electrodes for supplying an electrical signal to said energy generator to generate energy used to discharge flying droplets and said wiring unit for supplying the electrical signal to said electrodes; and molding said electrodes, said external wiring unit, said recording head unit and said substrate member into an integral unit with an insulative sealing material, wherein said connector extends externally of said integral unit.
Claim 3
Dependent Claim
25 words
A method for manufacturing a liquid jet recording head according to claim 1 wherein the sealing is effected by a low pressure transfer mold method.
Claim 4
Dependent Claim
20 words
A method for manufacturing a liquid jet recording head according to claim 1, wherein said insulative sealing material is resin.
Claim 5
Dependent Claim
22 words
A method for manufacturing a liquid jet recording head according to claim 3 wherein said resin is epoxy resin or silicone resin.
Claim 6
Dependent Claim
23 words
A method for manufacturing a liquid jet recording head according to claim 1 wherein said electrical connection is done by a wire-bonding method.
Claim 7
Dependent Claim
25 words
A method for manufacturing a liquid jet recording head according to claim 5 wherein a gold or aluminum wire is used in said wire-bonding method.
Claim 8
Dependent Claim
21 words
A method for manufacturing a liquid jet recording head according to claim 1 wherein said substrate member is a lead frame.
Claim 9
Dependent Claim
21 words
A method for manufacturing a liquid jet recording head according to claim 7, wherein said lead frame is made of metal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |