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. 01, 2020
Filed:
Feb. 19, 2019
Toshiaki Masuda, Kanagawa, JP;
Tsutoh Aoyama, Kanagawa, JP;
Takahiko Kuroda, Kanagawa, JP;
Masaki Kato, Tokyo, JP;
Toshiaki Masuda, Kanagawa, JP;
Tsutoh Aoyama, Kanagawa, JP;
Takahiko Kuroda, Kanagawa, JP;
Masaki Kato, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, a plurality of individual supply channels communicating with the plurality of pressure chambers, respectively, a plurality of common-supply branch channels each having a side face and a bottom face and communicating with two or more of the plurality of individual supply channels, respectively, and a common-supply main channel communicating with the plurality of common-supply branch channels. The plurality of common-supply branch channels includes a curved portion on a corner between the side face and the bottom face of each of the plurality of common-supply branch channels along a direction of liquid flow in the plurality of common-supply branch channels.