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:
Dec. 24, 2019
Filed:
May. 10, 2018
Fuji Xerox Co., Ltd., Tokyo, JP;
Soutaro Kakehi, Kanagawa, JP;
Sakon Takahashi, Kanagawa, JP;
Moegi Iguchi, Kanagawa, JP;
Yutaka Saito, Kanagawa, JP;
Mona Tasaki, Kanagawa, JP;
Yuka Yamagishi, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
An electrostatic charge image developing toner includes: a toner particle that contains a releasing agent, that has an exposed portion in which the releasing agent is exposed on a surface, and in which a proportion of the exposed portion occupying a surface, which is obtained by X-ray photoelectron spectroscopic analysis is 1 atom % or more and 20 atom % or less; and a strontium titanate particle that is externally added to the toner particle, that is doped with a metal element other than titanium and strontium, and in which an average primary particle diameter is 10 nm or more and 100 nm or less.