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. 05, 2017
Filed:
Dec. 16, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Suguru Taniguchi, Kawasaki, JP;
Koichi Omata, Kawasaki, JP;
Hideo Tamura, Kawasaki, JP;
Takaaki Yamaguchi, Yokohama, JP;
Kousuke Kubo, Kawasaki, JP;
Ryoji Oohashi, Yokohama, JP;
Yuji Tamaru, Yokohama, JP;
Toshio Negishi, Yokohama, JP;
Yohei Osuki, Nagareyama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A recording-element substrate includes a substrate including a base member, a pair of electrodes, a heating element formed of a thermal resistor layer between the electrodes, a surface on which an electroconductive film coating the heating element has been formed, and an insulating film between the heating element and the electroconductive film and a flow-path-forming member including walls forming a liquid flow path toward the heating element while being disposed on the substrate's surface side. The substrate includes an electric connecting portion in contact with the electroconductive film to connect the electroconductive film with the base member. The shortest distance between the electric connecting portion and a portion where an angle formed by the walls is 120 degrees or smaller when viewed from a direction orthogonal to the surface is smaller than that between a boundary between the electrodes and the heating element and the portion.