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. 14, 2014
Filed:
Jan. 18, 2012
Yasuo Kadokura, Kanagawa, JP;
Shunsuke Nozaki, Kanagawa, JP;
Hideaki Yoshikawa, Kanagawa, JP;
Shinichiro Kawashima, Kanagawa, JP;
Sakae Takeuchi, Kanagawa, JP;
Yuka Zenitani, Kanagawa, JP;
Sakon Takahashi, Kanagawa, JP;
Hiroyoshi Okuno, Kanagawa, JP;
Yasuo Kadokura, Kanagawa, JP;
Shunsuke Nozaki, Kanagawa, JP;
Hideaki Yoshikawa, Kanagawa, JP;
Shinichiro Kawashima, Kanagawa, JP;
Sakae Takeuchi, Kanagawa, JP;
Yuka Zenitani, Kanagawa, JP;
Sakon Takahashi, Kanagawa, JP;
Hiroyoshi Okuno, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An electrostatic charge image developing toner includes: toner particles; and an external additive. The external additive contains sol-gel silica having a volume average particle diameter of from about 70 nm to about 400 nm and an average circularity of from about 0.5 to about 0.9, and a dielectric loss factor of the toner is from about 5×10to about 30×10when the toner is kept for 24 hours under the environment of a temperature of 28° C. and a humidity of 85%.