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. 17, 2025
Filed:
May. 18, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Miki Ueda, Tokyo, JP;
Takeshi Hashimoto, Ibaraki, JP;
Kazuki Murata, Tokyo, JP;
Megumi Shino, Chiba, JP;
Yukihiro Abe, Chiba, JP;
Hayato Ida, Ibaraki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner comprising a toner particle containing a binder resin and an inorganic fine particle, wherein the binder resin contains a crystalline resin, the crystalline resin has a first monomer unit represented by the following formula (1), the inorganic fine particle is at least one inorganic fine particle selected from the group consisting of a particle containing CaCO, a particle containing BaSO, a particle containing MgSiO(OH), and a particle containing AlSiO(OH), the inorganic fine particle is treated with a fatty acid, and a content B of the inorganic fine particle in the toner particle is 1.0 mass % or more to 15.0 mass % or less, wherein Rrepresents a hydrogen atom or a methyl group, and Rrepresents an alkyl group having 18 to 36 carbon atoms.