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:
Mar. 10, 2020
Filed:
Jun. 20, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Masataka Kato, Hiratsuka, JP;
Toshiyasu Sakai, Kawasaki, JP;
Atsunori Terasaki, Kawasaki, JP;
Takayuki Kamimura, Kawasaki, JP;
Shuichi Tamatsukuri, Asaka, JP;
Hiroshi Higuchi, Atsugi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid discharge head includes a substrate that is provided with a supply passage having an opening; an energy generating element that is disposed on a surface of the substrate; an electric wiring layer; an insulation layer; and a discharge port member that forms a discharge port. The insulation layer has an end portion adjacent to the opening of the supply passage and set back from an edge of the opening of the supply passage toward a side where the energy generating element is disposed. The electric wiring layer includes a plurality of electric wiring layers layered on each other.