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:
Feb. 13, 1996
Filed:
Aug. 02, 1994
Applicant:
Inventors:
Toshio Suzuki, Inagi, JP;
Asao Saito, Yokohama, JP;
Makoto Shibata, Yokohama, JP;
Junichi Kobayashi, Ayase, JP;
Hirokazu Komuro, Yokohama, JP;
Toshihiro Mori, Yokohama, JP;
Shuji Koyama, Kawasaki, JP;
Sakai Yokoyama, Kawasaki, JP;
Ryoichi Koizumi, Yokohama, JP;
Keiichi Murakami, Hachioji, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ; B41J / ;
U.S. Cl.
CPC ...
347203 ; 347 20 ; 347 56 ; 347171 ;
Abstract
An ink jet recording head includes energy generators for generating the energy used to discharge ink and a substrate on which a circuit electrically connected to the energy generators is formed. Also provided is a protective member on an insulating layer on the substrate above the energy generators. The area of a protective member which is in contact with the ink is made to be as small as possible.