Invention Grant
- Patent Title: Liquid discharge head and liquid discharge apparatus
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Application No.: US16943033Application Date: 2020-07-30
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Publication No.: US11260662B2Publication Date: 2022-03-01
- Inventor: Kunio Wanikawa
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JPJP2019-139490 20190730
- Main IPC: B41J2/14
- IPC: B41J2/14

Abstract:
A liquid discharge head includes a pressure chamber substrate provided with a plurality of pressure chambers, a piezoelectric element row in which a plurality of piezoelectric elements that are provided to correspond to the plurality of pressure chambers respectively and that generate a pressure for discharging a liquid are arranged in a predetermined direction, and a protection portion positioned opposite to the plurality of pressure chambers with respect to the piezoelectric element row, and forming a space common to the plurality of piezoelectric elements, in which in regard to a first portion of the protection portion and a second portion of the protection portion having a position different from the first portion in the predetermined direction, a rigidity of the first portion is higher than a rigidity of the second portion.
Public/Granted literature
- US20210031519A1 LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS Public/Granted day:2021-02-04
Information query
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