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:
Sep. 21, 2021
Filed:
Apr. 07, 2020
Applicant:
Fujifilm Business Innovation Corp., Tokyo, JP;
Inventors:
Yuka Yamagishi, Kanagawa, JP;
Daisuke Noguchi, Kanagawa, JP;
Sakiko Takeuchi, Kanagawa, JP;
Kazuhiko Nakamura, Kanagawa, JP;
Yutaka Saito, Kanagawa, JP;
Assignee:
FUJIFILM Business Innovation Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 21/00 (2006.01); G03G 15/08 (2006.01); G03G 15/20 (2006.01); G03G 15/02 (2006.01); G03G 9/113 (2006.01); G03G 9/097 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0827 (2013.01); G03G 9/0819 (2013.01); G03G 9/0821 (2013.01); G03G 9/09708 (2013.01); G03G 9/1138 (2013.01); G03G 9/1139 (2013.01); G03G 15/02 (2013.01); G03G 15/0865 (2013.01); G03G 15/20 (2013.01); G03G 21/0011 (2013.01);
Abstract
An electrostatic-image developing toner includes toner particles, layered compound particles, and inorganic particles. The inorganic particles have an average circularity of 0.910 or more and 0.995 or less. A ratio Da/Db of a number-average particle size Da of the layered compound particles to a number-average particle size Db of the inorganic particles is 1.2 or more and 43 or less.