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:
Feb. 24, 2015
Filed:
Aug. 22, 2011
Yuka Zenitani, Kanagawa, JP;
Hideaki Yoshikawa, Kanagawa, JP;
Hiroyoshi Okuno, Kanagawa, JP;
Shunsuke Nozaki, Kanagawa, JP;
Shinichiro Kawashima, Kanagawa, JP;
Sakae Takeuchi, Kanagawa, JP;
Yasuo Kadokura, Kanagawa, JP;
Yuka Zenitani, Kanagawa, JP;
Hideaki Yoshikawa, Kanagawa, JP;
Hiroyoshi Okuno, Kanagawa, JP;
Shunsuke Nozaki, Kanagawa, JP;
Shinichiro Kawashima, Kanagawa, JP;
Sakae Takeuchi, Kanagawa, JP;
Yasuo Kadokura, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A resin particle including: a resin mother particle; and silica particles externally added onto a surface of the resin mother particle, wherein primary particles of the silica particles, the primary particles which have a volume average particle diameter of from 80 nm to 300 nm, a particle size distribution index of from 1.10 to 1.40, an average circularity of from 0.70 to 0.92 and an average circularity distribution index of from 1.05 to 1.50, and a proportion of the primary particles having an average circularity of 0.95 or more is not more 10% by number.