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. 13, 2012
Filed:
Sep. 13, 2007
Tadayuki Oshima, Atsugi, JP;
Hiroki Furubayashi, Atsugi, JP;
Taisuke Tokuwaki, Sagamihara, JP;
Toshio Kojima, Isehara, JP;
Tadaaki Hattori, Hadano, JP;
Yutaka Narita, Sagamihara, JP;
Makoto Nakamura, Ebina, JP;
Tadayuki Oshima, Atsugi, JP;
Hiroki Furubayashi, Atsugi, JP;
Taisuke Tokuwaki, Sagamihara, JP;
Toshio Kojima, Isehara, JP;
Tadaaki Hattori, Hadano, JP;
Yutaka Narita, Sagamihara, JP;
Makoto Nakamura, Ebina, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A conductive member includes a conductive support and an electrical resistance adjusting layer formed on the conductive support. The electrical resistance adjusting layer includes a thermoplastic resin, a polymeric ion conductive material, and a graft copolymer which is compatible with both of the thermoplastic resin and the polymeric ion conductive material. The electrical resistance adjusting layer is formed in a sea-island structure formed from a sea portion made of the polymeric ion conductive material and island portions made of the thermoplastic resin, the island portions being dispersed in the sea portion and each of the island portions is formed in an elongate shape. A layer made of the graft copolymer is formed at boundaries between the thermoplastic resin and the polymeric ion conductive material.