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. 20, 1998
Filed:
Feb. 29, 1996
Applicant:
Inventor:
Yumiko Ohashi, Hashima, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 71 ; 2908901 ;
Abstract
An ink-jet head has an actuator comprising conductive layers and piezoelectric ceramic layers which are alternately formed layer by layer in a cylindrical form so as to provide a hollow portion at the actuator center. The hollow portion corresponds to an ink chamber out of which ink is jetted. A process for manufacturing the ink-jet head is also disclosed.