← Back to Patent Explorer
EP0352142A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Ink jet recording

Assignee: Canon Inc
•
Filing: 1989-07-21
•
Granted: —
•
Expires: 2009-07-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A recording element unit comprises: a holding member; a recording element provided on the holding member and having a wiring for supplying electrical signals; and a bump-shaped electrode connected to the end of the wiring so as to be raised therefrom.

Inventors

  • 👤 Yutaka Koizumi
  • 👤 Yasutomo Watanabe

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 20:14
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14088; B41J2/14112; B41J2/14129; B41J2/16; B41J2/1601; B41J2/1604; B41J2/1621; B41J2/1623; B41J2/1626; B41J2/1631; B41J2/164; B41J2/1643; B41J2/1646; B41J2202/00; B41J2202/01; B41J2202/19

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 41 words
A recording element unit comprising: a holding member; a recording element provided on said holding member and having a wiring for supplying electrical signals; and a bump-shaped electrode connected to the end of said wiring so as to be raised therefrom.
Claim 2
Dependent Claim 41 words
A recording element unit comprising: a holding member; a recording element provided on said holding member and having a wiring for supplying electrical signals; and a bump-shaped electrode connected to the end of said wiring so as to be raised therefrom.
Claim 3
Dependent Claim 30 words
A recording element unit according to claim 1, wherein said recording element has a heat-generating resistance layer connected to said wiring, and is a electricity-heat converter for generating heat energy.
Claim 4
Dependent Claim 45 words
A recording element driving unit comprising a unit as claimed in claim 1 or 2, and a driving element substrate having a driving element and a wiring connected to said driving element, said bump-shaped electrode being connected to the wiring of said driving element substrate.
Claim 5
Dependent Claim 37 words
An ink jet unit comprising a unit as claimed in any of claims 1 to 3, and a liquid channel communicated to a discharging opening for discharging ink in response to energy generated by said recording element.
Claim 6
Dependent Claim 21 words
An ink jet recording device comprising a unit as claimed in any preceding claim and a member for mounting said unit.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag