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:
Nov. 06, 2001
Filed:
Aug. 06, 1999
Applicant:
Inventor:
Seiichi Kato, Miyagi, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/04 ;
U.S. Cl.
CPC ...
B41J 2/04 ;
Abstract
An ink-jet head includes a diaphgram and an electrode for emitting ink therefrom during a printing process. An electrostatic force is produced between the diaphragm and the electrode to thereby deform the diaphragm and pressurize liquid contained therein such that the liquid is fired by a restoration force of the diaphragm. The electrode includes a diffused layer in a Si substrate and an active device which acts as a driving circuit is provided in the Si substrate.