Patent US5442384A successfully refreshed from Google Patents.
US5442384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated nozzle member and tab circuit for inkjet printhead
Assignee: Hewlett Packard Development Co LP
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Filing: 1993-10-19
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Granted: 1995-08-15
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Expires: 2013-10-19
Abstract
Abstract In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form inkjet orifices. The nozzle member also has formed on it conductive traces for supplying electrical signals to heating elements on a substrate mounted to a surface of the nozzle member. In a preferred method, the orifices are formed by Excimer laser ablation.
Inventors
- 👤 Christopher A. Schantz
- 👤 Eric G. Hanson
- 👤 Si Ty
- 👤 Paul H. McClelland
- 👤 William J. Lloyd
- 👤 Winthrop D. Childers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:03
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1632; B41J2/1634; B41J2/14; B41J2/14016; B41J2/14024; B41J2/162; B41J2002/14387; B41J2202/00; B41J2202/01; B41J2202/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
A process for forming an inkjet printhead for a printer, comprising the steps of: forming ink orifices in a unitary strip of insulating flexible tape containing conductors for conducting electrical signals to ink ejection elements, said flexible tape having said orifices formed therein being a nozzle member for said printhead, said conductors extending from an area on said tape proximate to said orifices to a remote area on said tape for connection to power supply terminals in an ink printer; and providing said ink injection elements proximate to each of said orifices and connected to said conductors to form said printhead.
Claim 2
Dependent Claim
101 words
A process for forming an inkjet printhead for a printer, comprising the steps of: forming ink orifices in a unitary strip of insulating flexible tape containing conductors for conducting electrical signals to ink ejection elements, said flexible tape having said orifices formed therein being a nozzle member for said printhead, said conductors extending from an area on said tape proximate to said orifices to a remote area on said tape for connection to power supply terminals in an ink printer; and providing said ink injection elements proximate to each of said orifices and connected to said conductors to form said printhead.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein said step of forming ink orifices comprises laser ablating said flexible tape in a desired orifice pattern.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein said flexible tape comprises a polymer material.
Claim 5
Dependent Claim
51 words
The process of claim 1 wherein said step of forming ink orifices comprises the steps of: providing a first masking means between a laser and said tape, said first masking means including a pattern corresponding to said ink orifices; and exposing said tape to laser radiation through said first masking means.
Claim 6
Dependent Claim
34 words
The process of claim 1 wherein a plurality of nozzle members, each nozzle member to be subsequently mounted onto an associated print cartridge, are formed on a single flexible tape using a step-and-repeat process.
Claim 7
Dependent Claim
47 words
The process of claim 1 wherein said step of providing ink ejection elements comprises the step of: attaching a substrate containing a plurality of heater resistors to a bottom surface of said nozzle member, each of said heater resistors being associated with one of said ink orifices.
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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) | 1998-08-14 | 1999-02-13 | 1999-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-14 | 2003-02-13 | 2003-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-14 | 2007-02-13 | 2007-08-15 | $7700.00 | Window Closed / Lapsed |