Invention Grant
- Patent Title: Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetween
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Application No.: US11481848Application Date: 2006-07-07
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Publication No.: US07673975B2Publication Date: 2010-03-09
- Inventor: Tsutomu Hashizume , Tetsushi Takahashi
- Applicant: Tsutomu Hashizume , Tetsushi Takahashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP8-12113 19960126; JP8-35255 19960222; JP9-8075 19970120
- Main IPC: B41J2/045
- IPC: B41J2/045
Abstract:
An ink jet recording head comprising: a nozzle orifice for jetting ink; an ink chamber communicating with the nozzle; a diaphragm for pressurizing ink in the ink chamber; a piezoelectric thin film on the diaphragm; and an electrode for the piezoelectric thin film wherein the piezoelectric thin film and the electrode are patterned to the same shape.
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