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:
Feb. 26, 2013
Filed:
Feb. 22, 2010
Makoto Nakamura, Ebina, JP;
Yutaka Narita, Sagamihara, JP;
Tadayuki Oshima, Atsugi, JP;
Hiroki Furubayashi, Atsugi, JP;
Taisuke Tokuwakt, Sagamihara, JP;
Makoto Nakamura, Ebina, JP;
Yutaka Narita, Sagamihara, JP;
Tadayuki Oshima, Atsugi, JP;
Hiroki Furubayashi, Atsugi, JP;
Taisuke Tokuwakt, Sagamihara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A charging member, includes: an electrically-conductive support; an electrical resistance adjustment layer having ion conductivity provided on the electrically-conductive support; an intermediate layer having ion conductivity provided on the electrical resistance adjustment layer; and a surface layer having insulation provided on the intermediate layer, wherein the intermediate layer is formed of a resin composition containing at least a polyether polyol resin, and the surface layer is formed of a resin composition containing at least one of a fluorine-based resin, a silicone-based resin, a polyamide resin, a polyester resin, and a urethane resin.