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:
Jun. 16, 2015
Filed:
Nov. 18, 2011
Makoto Sakurai, Kawasaki, JP;
Hirokazu Komuro, Yokohama, JP;
Ichiro Saito, Yokohama, JP;
Yuzuru Ishida, Yokohama, JP;
Takeru Yasuda, Oita, JP;
Makoto Sakurai, Kawasaki, JP;
Hirokazu Komuro, Yokohama, JP;
Ichiro Saito, Yokohama, JP;
Yuzuru Ishida, Yokohama, JP;
Takeru Yasuda, Oita, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharge apparatus includes: a liquid discharge head which includes; a discharge port to discharge a liquid; and a substrate including: an energy generating element for generating thermal energy to discharge the liquid from the liquid discharge port; a pair of electrodes connected to the energy generating element for driving thereof; an insulating layer of an insulating material provided to cover the energy generating element; and a metal layer of a metal material provided corresponding to the energy generating element to cover the insulating layer; and a driver unit which sets a first potential of one of the pair of electrodes substantially equal to the potential of the liquid and a second potential of the other one of the pair of electrodes lower than the first potential to drive the energy generating element.