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:
Nov. 05, 2019
Filed:
Feb. 09, 2018
Fuji Xerox Co., Ltd., Tokyo, JP;
Narumasa Sato, Kanagawa, JP;
Kotaro Yoshihara, Kanagawa, JP;
Daisuke Ishizuka, Kanagawa, JP;
Takahisa Tatekawa, Kanagawa, JP;
Noriyuki Mizutani, Kanagawa, JP;
Erina Saito, Kanagawa, JP;
FUJI XEROX CO., LTD., Minato-ku, Tokyo, JP;
Abstract
An electrostatic charge image developing toner includes toner particles that contain a polyester resin which includes a condensed polymer of a polyvalent carboxylic acid and a polyol which contains ethylene glycol in an amount of from about 40% by weight to about 90% by weight with respect to a total amount of the polyol, and an external additive that contains silica particles in which a product of a volume average particle diameter D50 (nm) and a BET specific surface area SA (m/g) is from about 1.4×10to about 5.0×10.