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:
Oct. 29, 2002
Filed:
Aug. 30, 1999
Applicant:
Inventors:
Hideaki Horio, Fukuoka, JP;
Yutaka Miyazono, Fukuoka, JP;
Koji Ikeda, Hyogo, JP;
Akira Fukano, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 ;
U.S. Cl.
CPC ...
B41J 2/045 ;
Abstract
An ink jet head having a plate-like actuator to be deformed by field induction distortion serving as a drive source, causing ink in at least one pressure chamber to be discharged, each deformable portion of the actuator having a thickness of several &mgr;m and having an oval section in a plan elevation. Such pressure chambers are disposed in a plurality of columns. A group of electric contacts is disposed outside of the outermost pressure-chamber column. Wiring lines of individual electrodes of the actuator of the pressure chambers pass between adjacent pressure chambers