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:
Apr. 21, 2026
Filed:
Jul. 06, 2023
Seiko Epson Corporation, Tokyo, JP;
Shohei Mizuta, Matsumoto, JP;
Akira Miyagishi, Shiojiri, JP;
Toshiro Murayama, Fujimi, JP;
Madoka Ito, Matsumoto, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A liquid discharge head includes a first nozzle and a second nozzle, the first nozzle includes a first downstream nozzle portion opened on a discharge surface of a nozzle substrate and a first upstream nozzle portion of which a cross-sectional area is larger than a cross-sectional area of the first downstream nozzle portion, the second nozzle includes a second downstream nozzle portion opened on the discharge surface and a second upstream nozzle portion of which a cross-sectional area is larger than a cross-sectional area of the second downstream nozzle portion, and, when viewed in a thickness direction, a second distance between a gravity center position of the second downstream nozzle portion and a gravity center position of the second upstream nozzle portion is longer than a first distance between a gravity center position of the first downstream nozzle portion and a gravity center position of the first upstream nozzle portion.