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:
Mar. 06, 2001
Filed:
Oct. 25, 1999
Applicant:
Inventors:
Shigeo Matsuzaki, Sodegaura, JP;
Takashi Arakane, Sodegaura, JP;
Kazuo Murakata, Sodegaura, JP;
Susumu Kikuchi, Tokyo, JP;
Hisashi Mukataka, Watarai-gun, JP;
Yuji Kamiyama, Watarai-gun, JP;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/107 ;
U.S. Cl.
CPC ...
G03G 9/107 ;
Abstract
A carrier for electrophotography includes a carrier core material provided with magnetism and a coating layer which coats the surface of the carrier core material and includes a high molecular weight polyethylene resin having a weight average molecular weight of 50,000 or more. An outermost layer containing a magnetic powder having a three-dimensional form of a convex polyhedron is formed on the outermost surface of the coating layer.