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:
Jan. 23, 2024
Filed:
Oct. 13, 2021
Kyocera Document Solutions Inc., Osaka, JP;
Ryota Kobayashi, Osaka, JP;
Naruo Yabe, Osaka, JP;
Takeshi Arakawa, Osaka, JP;
Takeo Mizobe, Osaka, JP;
Masanori Sugahara, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A toner includes toner particles. The toner particles each include a toner mother particle and an external additive attached to the surface of the toner mother particle. The external additive includes specific external additive particles. The specific external additive particles have a number average primary particle diameter of at least 30 nm and no greater than 305 nm. The specific external additive particles include antimony-doped tin oxide particles or indium tin oxide particles. A ratio (M/(M+M)) of a mass (M) of an antimony atom to a total of the mass (M) of the antimony atom and a mass (M) of a tin atom in the antimony-doped tin oxide particles is at least 0.04 and no greater than 0.46.