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:
May. 29, 2007
Filed:
Apr. 15, 2004
Osamu Machida, Ibaraki, JP;
Kunio Satou, Ibaraki, JP;
Kazuo Shimizu, Ibaraki, JP;
Yoshinari Suzuki, Ibaraki, JP;
Osamu Machida, Ibaraki, JP;
Kunio Satou, Ibaraki, JP;
Kazuo Shimizu, Ibaraki, JP;
Yoshinari Suzuki, Ibaraki, JP;
Ricoh Printing Systems, Ltd., Tokyo, JP;
Abstract
An ink jet head includes: a chamber plate having a plurality of pressuring chambers formed therein for storing an ink; a vibrating plate bonded to the chamber plate; a housing having an ink flow path through which an ink is supplied into the pressuring chambers; an orifice through which an ink is ejected from the pressuring chambers; and a longitudinal vibration mode piezoelectric element for generating pressure under which an ink droplet is ejected through the orifice. A thickness of the vibration plate is from 5 μm to 10 μm.