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. 09, 1990
Filed:
Apr. 12, 1989
Applicant:
Inventors:
Tsuyoshi Kitahara, Suwa, JP;
Shuji Yonekubo, Suwa, JP;
Hideki Morozumi, Suwa, JP;
Koichi Higashimura, Suwa, JP;
Masanao Matsuzawa, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41V / ;
U.S. Cl.
CPC ...
3461 / ;
Abstract
An ink jet print head is provided having a nozzle forming substrate with a plurality of nozzles formed therein. Vibrators formed on a piezoelectric transducer disposed within the ink jet print head opposite the nozzles are independently drivable. A first gap is formed between the nozzle forming substrate and a vibrator in a region adjacent the nozzles. A second gap is formed between the nozzle forming substrate and a vibrator at a region away from the nozzles having a different dimension than the first gap.