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:
Jul. 01, 2014
Filed:
Dec. 27, 2012
Applicants:
Kosuke Nakamura, Tokyo, JP;
Okushi Okuyama, Tokyo, JP;
Inventors:
Kosuke Nakamura, Tokyo, JP;
Okushi Okuyama, Tokyo, JP;
Assignee:
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/113 (2006.01);
U.S. Cl.
CPC ...
G03G 9/1131 (2013.01); G03G 9/1139 (2013.01);
Abstract
A two-component developing agent includes toner and a carrier including carrier particles. The toner includes a binding resin. The carrier particle includes a porous ferrite core particle and a resin covering layer. The resin covering layer covers the porous ferrite core particle. The resin covering layer includes ferrite particles. An average particle diameter of the ferrite particles ranges from 0.1 to 1.0 μm.