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:
Feb. 23, 2016
Filed:
Dec. 12, 2012
Applicants:
Yu Kimura, Kanagawa, JP;
Kenichiro Hashimoto, Kanagawa, JP;
Inventors:
Yu Kimura, Kanagawa, JP;
Kenichiro Hashimoto, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B41J 2/17 (2006.01); B41J 2/20 (2006.01); B41J 2/055 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/20 (2013.01); B41J 2/055 (2013.01); B41J 2/14274 (2013.01); B41J 2/17563 (2013.01);
Abstract
A liquid discharge head includes a nozzle that discharges liquid droplets, a common liquid chamber that supplies liquid to an individual liquid chamber that is in communication with the nozzle, and a filter plate that is arranged in a liquid flow path of the common liquid chamber. The filter plate includes a filter part that filters the liquid and a damper part that reduces a pressure variation in the common liquid chamber, and the filter part is arranged to be thicker than the damper part.