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:
Apr. 24, 2012
Filed:
Apr. 06, 2005
Applicants:
Naoki Hirakawa, Yokohama, JP;
Koichi Shizuru, Yokohama, JP;
Makoto Iwamura, Yokohama, JP;
Inventors:
Assignee:
Synztec Co., Ltd, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 27/08 (2006.01); B32B 27/40 (2006.01); B01J 27/135 (2006.01); B01J 27/02 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A conductive roll having at least one conductive elastic layer on the outer periphery of a core bar, the conductive elastic layer being granted conductivity by carbon black, is provided. The conductive elastic layer is prepared by reacting at least a polyol consisting essentially of a polyether-based polyol with a diisocyanate with the use of a tetravalent organotin-based compound having a tin content of 18.7% or less by weight as a catalyst. A method for producing the conductive roll is also provided.