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:
May. 18, 1993
Filed:
Oct. 31, 1991
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
3461 / ; 257773 ;
Abstract
A substrate for use with a liquid jet recording head has a semiconductor substrate, functional elements formed on said semiconductor substrate, and electro-thermal transducers electrically connected to the functional elements for generating thermal energy to be utilized to discharge liquid. The substrate comprises a common electrode electrically connected to the functional elements in common. The common electrode has a notch at a position facing control electrodes formed between adjacent functional elements. The notch minimizes the overlap of the common electrode and the control electrodes to decrease the probability of an electrical defect.