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:
Aug. 21, 2018
Filed:
Oct. 21, 2016
Applicants:
Hiroyuki Kishida, Shizuoka, JP;
Kenichi Mashiko, Shizuoka, JP;
Mariko Takii, Kanagawa, JP;
Yoshihiro Murasawa, Shizuoka, JP;
Haruki Murata, Kanagawa, JP;
Inventors:
Hiroyuki Kishida, Shizuoka, JP;
Kenichi Mashiko, Shizuoka, JP;
Mariko Takii, Kanagawa, JP;
Yoshihiro Murasawa, Shizuoka, JP;
Haruki Murata, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/113 (2006.01); G03G 9/10 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/10 (2013.01); G03G 9/1139 (2013.01); G03G 15/08 (2013.01);
Abstract
A carrier includes a core and a covering layer covering the core and including at least carbon black and a filler. The maximum height Ry of the surface of the carrier is from 4.0 μm to 5.0 μm.