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:
Aug. 31, 2021
Filed:
Feb. 21, 2020
Ricoh Company, Ltd., Tokyo, JP;
Yohsuke Kobayashi, Kanagawa, JP;
Kaname Morita, Kanagawa, JP;
Kenshiroh Munetomo, Kanagawa, JP;
Yoshihide Niisato, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes a nozzle substrate and a cover member. The nozzle substrate includes a liquid discharge surface, a plurality of nozzles, and a continuous recess. The plurality of nozzles is arranged in a nozzle arrangement area on the liquid discharge surface and configured to discharge liquid from the liquid discharge surface. The continuous recess surrounds the nozzle arrangement area on the liquid discharge surface. The cover member is joined to the nozzle substrate with the nozzle arrangement area being exposed. The nozzle arrangement area has a liquid repellency with respect to the liquid. An inside of the recess is lyophilic to the liquid and is provided with an adhesive, and the nozzle substrate is joined to the cover member with the adhesive.