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. 16, 2020
Filed:
Sep. 11, 2018
Seiko Epson Corporation, Tokyo, JP;
Shiro Yazaki, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting head including a flow path forming substrate on which a pressure generation chamber and a first liquid supply chamber communicating with the pressure generation chamber are formed, a vibration plate that is formed on one surface side of the flow path forming substrate, a piezoelectric element that is provided on the vibration plate at a position corresponding to the first pressure generation chamber, a first filter that is provided on the one surface side of the flow path forming substrate and in which a plurality of first liquid supply ports communicating with the first liquid supply chamber are formed, and a second filter that is provided on an upstream side of the first filter and provided with a plurality of second liquid supply ports, in which an inner diameter of the second liquid supply port is an inner diameter or larger of the first liquid supply port.