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:
Sep. 06, 2005
Filed:
Mar. 03, 2003
Applicants:
Yoichi Yamada, Nagano-ken, JP;
Takehiko Okamura, Nagano-ken, JP;
Inventors:
Yoichi Yamada, Nagano-ken, JP;
Takehiko Okamura, Nagano-ken, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/08 ;
U.S. Cl.
CPC ...
Abstract
A developer bearing member for bearing toner, the developer bearing member having a multitude of depressions on its surface, and each of the depressions has a multitude of protrusions on its surface. A method for forming the developer bearing member where a surface of the developer bearing member is treated by a blasting treatment, an etching treatment, and electroless plating. Alternatively, the surface of the developer bearing member can be treated with a blasting treatment using particles having a multitude of depressions.