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:
Oct. 13, 2009
Filed:
Sep. 08, 2006
Eiji Shimojo, Tokyo, JP;
Masanori Kawasumi, Kanagawa, JP;
Yoshiyuki Kimura, Tokyo, JP;
Masahiko Satoh, Tokyo, JP;
Takeshi Uchitani, Kanagawa, JP;
Hideki Zemba, Kanagawa, JP;
Yutaka Narita, Kanagawa, JP;
Shunichi Hashimoto, Kanagawa, JP;
Eisaku Murakami, Tokyo, JP;
Shin Kayahara, Kanagawa, JP;
Eiji Shimojo, Tokyo, JP;
Masanori Kawasumi, Kanagawa, JP;
Yoshiyuki Kimura, Tokyo, JP;
Masahiko Satoh, Tokyo, JP;
Takeshi Uchitani, Kanagawa, JP;
Hideki Zemba, Kanagawa, JP;
Yutaka Narita, Kanagawa, JP;
Shunichi Hashimoto, Kanagawa, JP;
Eisaku Murakami, Tokyo, JP;
Shin Kayahara, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A conductive member, including a long conductive supporting body, an electrical resistance adjusting layer, disposed on the outer circumferential surface of the conductive supporting body and having a reduced diameter section at either end, and a pair of gap maintaining members which are respectively fitted onto said reduced diameter sections of the electrical resistance adjusting layer. The outer circumferential surfaces of the gap maintaining members have a height differential with respect to the outer circumferential surface of the electrical resistance adjusting layer, in such a manner that when abutted against an image carrier, a prescribed gap is formed between the outer circumferential surface of the image carrier and the outer circumferential surface of the electrical resistance adjusting layer. An interval between the end faces of the electrical resistance adjusting layer and the faces of the gap maintaining members opposing the end faces satisfies a predetermined relationship.