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. 10, 2019
Filed:
Aug. 31, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Yohei Osuki, Nagareyama, 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;
Suguru Taniguchi, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A print element substrate, comprises: a heater layer; a wiring layer that is connected to the heater layer and is for causing the heater layer to generate heat; an insulating layer arranged on the wiring layer; an anti-cavitation layer arranged on the insulating layer that is for protecting the insulating layer; and a switch that has a control terminal that is pulled-down to a ground, and causes the anti-cavitation layer and the ground to have an electrical connection when the control terminal is in a high-level state.