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:
Aug. 25, 2009
Filed:
May. 16, 2007
Hidemi Nukada, Kanagawa, JP;
Shigeto Hashiba, Kanagawa, JP;
Takahiro Suzuki, Kanagawa, JP;
Koji Bando, Kanagawa, JP;
Makoto Takemoto, Kanagawa, JP;
Hidemi Nukada, Kanagawa, JP;
Shigeto Hashiba, Kanagawa, JP;
Takahiro Suzuki, Kanagawa, JP;
Koji Bando, Kanagawa, JP;
Makoto Takemoto, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A charging roller including: a support; an elastic layer provided on the outer peripheral surface of the support, and having a ground-finished outer peripheral surface; and a surface layer formed to cover the outer peripheral surface of the elastic layer and that has a thickness of about 2 μm to about 10 μm from the outer peripheral surface of the elastic layer, and a proportion of water absorbed in the total of the elastic layer and the surface layer, after storage for 48 hours in an environment having a temperature of 10° C. and a humidity of 15% RH, and after storage for 48 hours in an environment having a temperature of 28° C. and a humidity of 85% RH, being about 2% to about 8% by weight, being about 2% to about 8% by weight.