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:
Nov. 09, 2010
Filed:
Sep. 17, 2007
Applicants:
Takeo Oshiba, Tokyo, JP;
Masahiro Anno, Tokyo, JP;
Okushi Okuyama, Tokyo, JP;
Satoshi Uchino, Tokyo, JP;
Shinya Obara, Tokyo, JP;
Ryuichi Hiramoto, Tokyo, JP;
SO Matsuya, Tokyo, JP;
Inventors:
Takeo Oshiba, Tokyo, JP;
Masahiro Anno, Tokyo, JP;
Okushi Okuyama, Tokyo, JP;
Satoshi Uchino, Tokyo, JP;
Shinya Obara, Tokyo, JP;
Ryuichi Hiramoto, Tokyo, JP;
So Matsuya, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A developing roller comprising: a shaft comprising an aluminum alloy; and a coating layer directly formed on a periphery of the shaft, the coating layer comprising a conducting agent and a binder comprising a resin, wherein the aluminum alloy comprises 0.2 to 0.8% by mass of silicon and 0.05 to 1.5% by mass of maganese, based on the total mass of the aluminum alloy.