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:
Mar. 08, 2005
Filed:
Aug. 21, 2002
Applicants:
Kenichiro Arai, Nagano, JP;
Noboru Otsuki, Nagano, JP;
Inventors:
Kenichiro Arai, Nagano, JP;
Noboru Otsuki, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J002/17 ;
U.S. Cl.
CPC ...
Abstract
A head chip has a front face formed with nozzle orifices, and a rear face formed with at least one ink inlet. A damping chamber forming member is laminated on the rear face of the head chip. The damping chamber forming member has at least one damping chamber for dampening pressure fluctuation occurred therein, and an ink supply port for supplying ink from the damping chamber to the head chip.