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:
Sep. 30, 2025
Filed:
May. 15, 2023
Katsuhiro Hoshi, Kanagawa, JP;
Katsuhiro Hoshi, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes: a housing; a nozzle plate attached to the housing, the nozzle plate having a nozzle from which a liquid is to be discharged; a valve in the housing, the valve configured to move in an opening and closing direction and openably close the nozzle; a driver having one end coupled to the valve in the opening and closing direction, the driver configured to drive the valve; and a fixing member fixed to the housing and coupled to another end of the driver in the opening and closing direction. The driver has a first linear expansion coefficient, each of the valve and the fixing member has a second linear expansion coefficient, and the first linear expansion coefficient and the second linear expansion coefficient are reversed in positivity and negativity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile