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:
May. 01, 2018
Filed:
Apr. 25, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Yuya Chimoto, Funabashi, JP;
Hayato Ida, Toride, JP;
Takaho Shibata, Tokyo, JP;
Junichi Tamura, Toride, JP;
Kouichirou Ochi, Chiba, JP;
Ryuji Murayama, Nagareyama, JP;
Daisuke Yamashita, Kashiwa, JP;
Tomoyo Miyakai, Kashiwa, JP;
Takashi Hirasa, Moriya, JP;
Kentaro Kamae, Kashiwa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner includes a toner particle containing a resin component. The resin component contains an ester group-containing olefin copolymer and an acid group-containing olefin copolymer. For example, the ester group-containing olefin copolymer is an ethylene-vinyl acetate copolymer, and the acid group-containing olefin copolymer is an ethylene-methacrylic acid copolymer. The acid group-containing olefin copolymer has an acid value of 50 to 300 mg KOH/g. The content of the ester group-containing olefin copolymer in the resin component is 50 mass % or more based on the total mass of the resin component. The content of the unit derived from the vinyl acetate is 3 mass % or more and 35 mass % or less based on the total mass of the ester group-containing olefin copolymer.