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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.:

US 5604031 B1

PDFFull Text
Date of Patent:
Feb. 18, 1997

Filed:

Jun. 17, 1994

Electrically conductive roll whose base layer is formed of

Applicant:
Inventors:

Takafumi Yamamoto, Kasugai, JP;

Sumio Oinuma, Tajimi, JP;

Kazutoshi Soumiya, Komaki, JP;

Saburou Hayashi, Kasugai, JP;

Hiroyasu Kato, Bisai, JP;

Assignee:

Tokai Rubber Industries, Ltd., , JP;

Attorney:

Parkhurst, Wendel & Burr, LLP

Primary Examiner:

Paul J Thibodeau

Assistant Examiner:

Stephen Sand

Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428335 ; 428337 ; 428461 ; 4284755 ; 4284758 ; 428500 ; 428515 ; 428906 ;
Abstract

An electrically conductive roll is disclosed, which includes: a center shaft; a base layer formed on an outer circumferential surface of the center shaft and including an elastic material as a major component and an ion-conductive material, the base layer having a volume resistivity of 10.sup.6 -10.sup.9 .OMEGA.cm; an electrode layer formed on an outer surface of the base layer and including a synthetic resin material as a major component and an electron-conductive material, the electrode layer having a volume resistivity of not more than 10.sup.3 .OMEGA.cm; a resistance adjusting layer formed on an outer surface of the electrode layer; and a protective layer formed on an outer surface of the resistance adjusting layer.

Find Patent Forward Citations

Yamamoto, Takafumi. (1997). Electrically conductive roll whose base layer is formed of (U.S. Patent No. 5604031). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5604031

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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