Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hitoshi Takaai0
Masanori Mikoshiba0
Shiro Yazaki0
Toshinao Shinbo0
Date of Patent
March 15, 2022
Patent Application Number
16849000
Date Filed
April 15, 2020
Patent Citations Received
Patent Primary Examiner
A liquid ejecting head including a diaphragm constituting a portion of a wall surface of a pressure chamber that accommodates a liquid, and a piezoelectric element that vibrates the diaphragm. In the liquid ejecting head, the diaphragm includes a plurality of layers, and the plurality of layers include a compressive film that has compressive stress and a tensile film that has tensile stress. The compressive film and the tensile film are two layers adjacent to each other that have a largest tension difference among the plurality of layers, and an absolute value of the tension difference between the compressive film and the tensile film is 400 [N/m] or smaller.
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