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:
Aug. 12, 2014
Filed:
Mar. 14, 2013
Keisuke Hayashi, Kanagawa, JP;
Keisuke Hayashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
In a liquid drop ejecting head including a diaphragm, a channel member, and a nozzle plate which are laminated in this order, interface surfaces of the channel member and the diaphragm are bonded by an adhesive. The diaphragm is formed to have a laminated structure in which the number of lamination layers is varied at different locations. The diaphragm includes an opening and a filter part, the filter part having plural filtering holes formed in the opening for supplying a liquid to pressurizing liquid chambers of the channel member. A side wall of the channel member disposed to contact or located in a vicinity of the filter part, and a thick-walled portion containing the largest number of lamination layers in the diaphragm do not overlap with each other in a laminating direction.