The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2018
Filed:
May. 11, 2017
Satoshi Mizukami, Kanagawa, JP;
Satoshi Mizukami, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
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.