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. 12, 2002
Filed:
Jul. 06, 2000
Applicant:
Inventor:
Kaihei Isshiki, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/04 ;
U.S. Cl.
CPC ...
B41J 2/04 ;
Abstract
An ink-jet head includes nozzle holes for firing ink drops, ink flow paths with which the nozzle holes communicate, vibration plates which are walls of the ink flow paths, and electrodes facing the vibration plates, and firing the ink drops from the nozzle holes as a result of the vibration plates being deformed by electrostatic forces between the vibration plates and electrodes. The electrodes are provided on an electrode substrate having conductivity with an insulating layer provided therebetween, and the electrode substrate and the vibration plates are electrically connected together.