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:
Jan. 21, 2020
Filed:
Aug. 08, 2017
Sumitomo Riko Company Limited, Komaki-shi, Aichi, JP;
Takeru Horiuchi, Komaki, JP;
Manabu Sakuda, Komaki, JP;
Yosuke Hayashi, Komaki, JP;
Yuma Yoshida, Komaki, JP;
Daisuke Inoue, Komaki, JP;
SUMITOMO RIKO COMPANY LIMITED, Komaki-shi, JP;
Abstract
To provide a conductive roll for an electrophotographic apparatus that includes a conductive rubber elastic body layer having a lower hardness and lower settling properties than a conventional conductive rubber elastic body layer. A conductive rollfor an electrophotographic apparatus includes a shaft bodyand a conductive rubber elastic body layerprovided on the outer periphery of the shaft bodythe conductive rubber elastic body layercontaining polar rubber, non-polar rubber, and a dispersing agent, wherein the polar rubber is at least one of nitrile rubber, hydrin rubber, and chloroprene rubber, wherein the non-polar rubber is at least one of isoprene rubber, hydrogenated isoprene rubber, and natural rubber, and wherein the dispersing agent is at least one of a polymer containing a block made of a nitrile rubber component and a block made of an isoprene rubber component, modified natural rubber, and modified isoprene rubber.