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:
Nov. 05, 2012
Applicant:
Kyocera Document Solutions Inc., Osaka, JP;
Inventors:
Takanori Tanaka, Osaka, JP;
Masashi Tamagaki, Osaka, JP;
Assignee:
KYOCERA DOCUMENT SOLUTIONS INC., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0808 (2013.01); G03G 9/081 (2013.01); G03G 9/0815 (2013.01); G03G 9/0817 (2013.01); G03G 9/0819 (2013.01); G03G 9/0825 (2013.01); G03G 9/0827 (2013.01); G03G 9/08755 (2013.01);
Abstract
There is disclosed a toner for electrostatic latent image development which includes at least a colorant, a charge control agent, and a release agent in a binder resin and is produced using a pulverizing process. An average circularity of the toner is 0.960 or more and 0.980 or less with respect to toner particles having a primary particle diameter of 3 μm or more and 10 μm or less. A numerical proportion of toner particles, having a concave portion of which outer diameter is 200 nm or more and being observed by a predetermined condition, is 10% by number or less.