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:
Apr. 11, 2023
Filed:
Sep. 14, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yuzo Tokunaga, Chiba, JP;
Takashi Hirasa, Moriya, JP;
Yasutaka Akashi, Yokohama, JP;
Masato Nakajima, Moriya, JP;
Naohiko Tsuchida, Tokyo, JP;
Akifumi Matsubara, Kashiwa, JP;
Kohji Takenaka, Toride, JP;
Yuya Chimoto, Funabashi, JP;
Kouichirou Ochi, Chiba, JP;
Tomoyo Miyakai, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid developer comprising: a toner particle containing binder resin; a carrier liquid; and a basic toner particle dispersing agent, wherein the basic toner particle dispersing agent is a primary amine, an acid value of the binder resin is at least 10 mg KOH/g, an acid value of a component having a molecular weight of not more than 2,000 contained in the binder resin is not more than 5 mg KOH/g, and a hydroxyl value of the component having a molecular weight of not more than 2,000 contained in the binder resin is not more than 10 mg KOH/g.