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:
Oct. 07, 2014
Filed:
Nov. 19, 2012
Applicants:
Hideyuki Santo, Shizuoka, JP;
Shinya Nakayama, Shizuoka, JP;
Atsushi Yamamoto, Shizuoka, JP;
Daiki Yamashita, Kanagawa, JP;
Suzuka Amemori, Shizuoka, JP;
Inventors:
Hideyuki Santo, Shizuoka, JP;
Shinya Nakayama, Shizuoka, JP;
Atsushi Yamamoto, Shizuoka, JP;
Daiki Yamashita, Kanagawa, JP;
Suzuka Amemori, Shizuoka, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 13/20 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08764 (2013.01); G03G 9/08797 (2013.01); G03G 13/20 (2013.01); G03G 9/0926 (2013.01);
Abstract
To provide a toner, including: a crystalline binder resin including a urethane bond or a urea bond, or both thereof; and a colorant, wherein the colorant has a number-average particle diameter of 0.5 μm or less, and a ratio of particles having a particle diameter of 0.7 μm or greater in a number-size distribution of the colorant is 5% by number or less.