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:
Jul. 31, 2018
Filed:
Jan. 19, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Ryo Kasai, Tokyo, JP;
Nobuyuki Hirayama, Fujisawa, JP;
Masataka Sakurai, Kawasaki, JP;
Kengo Umeda, Tokyo, JP;
Hidenori Yamato, Tokyo, JP;
Makoto Takagi, Yokohama, JP;
Tatsuhito Goden, Machida, JP;
Sadayoshi Sakuma, Oita, JP;
Nobuyuki Suzuki, Oita, JP;
Toru Eto, Oita, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An element substrate of a liquid ejection head includes: a base material; an insulating film positioned on the base material; a heating resistance element for generating heat energy for ejecting a liquid; a protective film for covering the heating resistance element; a first electrical wiring layer arranged in the insulating film, for supplying a current to the heating resistance element; a second electrical wiring layer arranged on a layer different from the first electrical wiring layer in the insulating film, for supplying a current to the heating resistance element; and at least one connecting member extending into the insulating film to connect the first electrical wiring layer and the heating resistance element, for causing the current to flow in a first direction, the heating resistance element including a connecting region, extending in a second direction intersecting the first direction, to which the at least one connecting member is connected.