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:
Jul. 28, 2026
Filed:
Nov. 21, 2022
Makito Nakashima, Kanagawa, JP;
Kiyoshi Amari, Kanagawa, JP;
Toshihiro Kanematsu, Kanagawa, JP;
Shusei Murai, Tokyo, JP;
Tatsumi Suzuki, Tokyo, JP;
Hiroshi Wada, Kanagawa, JP;
Makito Nakashima, Kanagawa, JP;
Kiyoshi Amari, Kanagawa, JP;
Toshihiro Kanematsu, Kanagawa, JP;
Shusei Murai, Tokyo, JP;
Tatsumi Suzuki, Tokyo, JP;
Hiroshi Wada, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes: a discharge port, from which a liquid is to be discharged; and an openably closing valve configured to move in a moving direction toward the discharge port to openably close the discharge port, the openably closing valve including a core, wherein the core has a core end at one end of the core opposing the discharge port, the core end has: a concave in the core end, the concave recessed in a direction opposite to the discharge port; and an elastic member covering the concave and an outer side face of the core end continuously.