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:
May. 27, 2025
Filed:
Jul. 06, 2023
Seiko Epson Corporation, Tokyo, JP;
Shohei Mizuta, Matsumoto, JP;
Yuma Fukuzawa, Matsumoto, JP;
Akira Miyagishi, Shiojiri, JP;
Toshiro Murayama, Fujimi, JP;
Madoka Ito, Matsumoto, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A liquid ejecting head includes a first driving element, a first pressure chamber, and a first nozzle that is formed in a nozzle substrate, in which the first nozzle includes a first upstream nozzle portion including a first supply opening opened in a second surface of the nozzle substrate and a first bottom surface and a first downstream nozzle portion including a first ejection opening opened in a first surface of the nozzle substrate and a first coupling section opened in the first bottom surface, when viewed in a thickness direction of the nozzle substrate, a sectional area of the first upstream nozzle portion is larger than a sectional area of the first downstream nozzle portion, and a center of gravity of the first coupling section is positioned between a center of gravity of the first ejection opening and a center of gravity of the first bottom surface.