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:
Jun. 30, 2015
Filed:
Mar. 28, 2013
Applicant:
Kyocera Document Solutions Inc., Osaka-shi, JP;
Inventor:
Hidetoshi Miyamoto, Osaka, JP;
Assignee:
KYOCERA DOCUMENT SOLUTIONS INC., Osaka-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 9/08 (2006.01); C09B 67/04 (2006.01); C09B 67/00 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0819 (2013.01); G03G 9/08755 (2013.01); G03G 9/0926 (2013.01); C09B 67/0002 (2013.01); C09B 67/0022 (2013.01); C09B 67/0023 (2013.01); G03G 9/0804 (2013.01); G03G 9/0812 (2013.01); G03G 9/0918 (2013.01); G03G 9/092 (2013.01);
Abstract
A toner containing a binder resin, a release agent, and pigment fine particles is produced by aggregating fine particles containing the components of the toner to obtain fine particle aggregates and then coalescing the fine particle aggregates. The pigment fine particles have an average primary particle diameter of 50 nm or less, a Cv value of less than 20%, and an average circularity of 0.900 or more.