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. 30, 2015
Filed:
Apr. 23, 2013
Keisuke Hayashi, Kanagawa, JP;
Keisuke Hayashi, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes nozzles that discharge liquid droplets, individual channels in communication with the nozzles, a liquid introducing part in communication with the individual channels, a common liquid chamber that supplies liquid to the individual channels, and a filter part arranged between the common liquid chamber and the liquid introducing part. The filter part has filter holes for filtering the liquid over a range of the individual channels in a nozzle array direction. The filter part has at least one reinforcement rib arranged in the nozzle array direction. The reinforcement rib is partially arranged over the range of the individual channels in a direction perpendicular to the nozzle array direction. Filter regions divided by the reinforcement rib are arranged to be in communication via a communication region where the reinforcement rib is not arranged, and the filter holes are arranged at the communication region.