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:
Jun. 22, 2021
Filed:
Nov. 07, 2019
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Ryohta Yoneta, Kanagawa, JP;
Takahiro Yoshida, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/1433 (2013.01);
Abstract
A liquid discharge head includes a plurality of nozzles from which a liquid is discharged in a gravity direction, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, a common channel communicating with each of the plurality of pressure chambers, the common channel including a top surface and a bottom surface disposed below the top surface in the gravity direction, and a plurality of convex portions formed on the bottom surface of the common channel.