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. 19, 2002
Filed:
Dec. 23, 1999
Kazuyoshi Mimura, Otsu, JP;
Kenji Kobayashi, Otsu, JP;
Susumu Fukuda, Otsu, JP;
Hiroshi Ogoshi, Otsu, JP;
Yasuo Fushiki, Otsu, JP;
Kaneka Corporation, Osaka, JP;
Abstract
A developing roller ( ) comprising an elastic layer ( ) wound round a conductive shaft ( ) and one or more resin layers ( ) laminated on the elastic layer. The elastic layer ( ) has a JIS A hardness of not greater than 50 degrees. At least the outermost layer of the one or more resin layers ( ) contains fine particles and the surface roughness (R ) of the outermost layer is regulated to be within the range of 3 to 15 &mgr;m. A resin composition containing an —NHCO— bound or a resin composition containing —ROCO — and —SiOSi— repeating units and an —NHCO— bond can be used for the outermost layer.