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:
Feb. 18, 2025
Filed:
Dec. 22, 2022
Seiko Epson Corporation, Tokyo, JP;
Hajime Onishi, Chino, JP;
Taisuke Nakashima, Chino, JP;
Yasutaka Matsumoto, Suwa, JP;
Yutaka Yamazaki, Shiojiri, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A flow passage forming member includes flow passage forming member main bodiesandthat are formed of a resin material and define at least a part of a flow passage, a metal protective filmthat is provided on a surface of the flow passage forming member main bodyand a surface of the flow passage forming member main bodydefining at least the flow passage and is formed of a metal material, and a protective filmthat is laminated on the metal protective filmand contains an oxide or a nitride of at least on element selected from the group consisting of tantalum (Ta), titanium (Ti), zirconium (Zr), niobium (Nb), vanadium (V), hafnium (Hf), silicon (Si), aluminum (Al), tungsten (W), and yttrium (Y).