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:
Jul. 03, 2018
Filed:
Aug. 21, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Kentaro Kamae, Kashiwa, JP;
Ryuichiro Matsuo, Moriya, JP;
Yosuke Iwasaki, Abiko, JP;
Wakiko Katsumata, Kashiwa, JP;
Kenta Mitsuiki, Toride, JP;
Takeshi Ohtsu, Toride, JP;
Masaharu Miura, Toride, JP;
Koh Ishigami, Abiko, JP;
Yuichi Mizo, Toride, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner having a toner particle containing an amorphous resin, a crystalline resin, a colorant, a release agent, and a polymer in which a styrene-acrylic polymer is graft-polymerized on a polyolefin, wherein the amorphous resin contains an amorphous polyester resin A, and the amorphous polyester resin A has a monomer unit derived from polyhydric alcohol and a monomer unit derived from polyhydric carboxylic acid, has, a particular amount of a succinic acid-derived monomer unit in the monomer unit derived from polyhydric carboxylic acid, and has, a particular amount of a monomer unit derived from a propylene oxide adduct on bisphenol A in the monomer unit derived from polyhydric alcohol; and has a particular softening point, a particular solubility parameter, and a particular peak molecular weight.