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:
Sep. 05, 2017
Filed:
Apr. 25, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Kenji Takahashi, Yokohama, JP;
Shinya Iwahashi, Kawasaki, JP;
Soichiro Nagamochi, Oita, JP;
Souta Takeuchi, Fujisawa, JP;
Takuya Hatsui, Tokyo, JP;
Shuichi Tamatsukuri, Asaka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Even if electrostatic discharge occurs, dielectric breakdown of an insulating layer for covering an element on a base substrate is inhibited. A substrate for an ink jet recording head includes: a base substrate including an element configured to apply energy for ejecting ink to ink and an insulating protective layer for covering the element; an ejection orifice forming member including an insulating first member for forming an ink flow path for supplying ink to the element and a second member including an ejection orifice surface having ejection orifices provided therein; and a columnar conductive member extending between the second member and the base substrate in a direction intersecting the ejection orifice surface.