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. 16, 2015
Filed:
Aug. 29, 2014
Ryohta Yoneta, Tokyo, JP;
Ryohta Yoneta, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes a nozzle plate, a channel plate, a wall member, and a common liquid chamber. The nozzle plate includes nozzles, and the channel plate forms a plurality of individual channels communicating with the nozzles. The wall member forms at least one portion of a wall of the plurality of individual channels. The common liquid chamber, arranged at a side opposite the plurality of individual channels, supplies liquid to the individual channel. The wall member includes a deformable damper area, a reinforced area, and an area of reduced thickness. The damper area forms one portion of a wall of the common liquid chamber, and the reinforced area divides the damper area into plural areas. The area of reduced thickness, arranged in at least one portion of the reinforced area, has a thickness greater than the damper area and less than the reinforced area.