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. 01, 2026
Filed:
Apr. 04, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Akira Goto, Kanagawa, JP;
Keiji Tomizawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection apparatus that includes a cartridge containing liquid and a heat resistor generating heat to eject the liquid and that forms an electric field by a first electrode, which is a part of a protective layer protecting a surface of the heat resistor, and a second electrode corresponding to the first electrode with the liquid interposed therebetween, includes: a reading unit that reads cartridge information from a storage unit of the cartridge; and a determination unit that determines an electric potential difference between electric potential of the first electrode and electric potential of the second electrode according to the cartridge information.