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:
Dec. 10, 2002
Filed:
Dec. 29, 2000
Applicant:
Inventors:
Takahiro Usui, Suwa, JP;
Satoru Miyashita, Suwa, JP;
Tatsuya Shimoda, Suwa, JP;
Satoshi Inoue, Suwa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 ;
U.S. Cl.
CPC ...
B41J 2/045 ;
Abstract
An ink jet printer head having a base, an ink reservoir, an ink pressure generating chamber, a piezoelectric element separating the reservoir and chamber and having a hole connecting the reservoir and chamber, and a transistor formed opposite the piezoelectric element relative to the ink reservoir for operating the piezoelectric element.