Invention Grant
- Patent Title: Liquid discharge head, liquid discharge device, and liquid discharge apparatus
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Application No.: US15592447Application Date: 2017-05-11
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Publication No.: US09987843B2Publication Date: 2018-06-05
- Inventor: Satoshi Mizukami
- Applicant: Satoshi Mizukami
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2016-100138 20160519; JP2016-186264 20160923
- Main IPC: B41J2/14
- IPC: B41J2/14 ; C04B35/493 ; H01L41/187 ; H01L41/09 ; B41J2/045 ; H01L41/316 ; C23C14/08 ; H01L41/08

Abstract:
A liquid discharge head includes a nozzle plate, a substrate, a diaphragm, and a piezoelectric element. The nozzle plate includes a nozzle from which liquid is discharged. The substrate is disposed on the nozzle plate and includes a pressure chamber communicating with the nozzle. The diaphragm is disposed on a first side of the substrate opposite a second side of the substrate on which the nozzle plate is disposed, the diaphragm constituting one wall of the pressure chamber. The piezoelectric element is disposed on the diaphragm to deform the diaphragm to discharge liquid in the pressure chamber from the nozzle. The piezoelectric element includes a first electrode, a piezoelectric film, and a second electrode. The first electrode is disposed on the diaphragm. The piezoelectric film is disposed on the first electrode.
Public/Granted literature
- US20170334205A1 LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARGE APPARATUS Public/Granted day:2017-11-23
Information query
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