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.

Date of Patent:
Sep. 21, 2010

Filed:

Feb. 16, 2007
Applicants:

Takuro Hoshio, Kanagawa, JP;

Fumio Ojima, Kanagawa, JP;

Yoshihiro Maekawa, Kanagawa, JP;

Taichi Yamada, Kanagawa, JP;

Nagahito Ichijo, Kanagawa, JP;

Naoki Ohta, Kanagawa, JP;

Hiroyuki Fukuda, Kanagawa, JP;

Yoshinori Kubo, Kanagawa, JP;

Inventors:

Takuro Hoshio, Kanagawa, JP;

Fumio Ojima, Kanagawa, JP;

Yoshihiro Maekawa, Kanagawa, JP;

Taichi Yamada, Kanagawa, JP;

Nagahito Ichijo, Kanagawa, JP;

Naoki Ohta, Kanagawa, JP;

Hiroyuki Fukuda, Kanagawa, JP;

Yoshinori Kubo, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a charging member cleaning roller including: a core body; and an elastic layer that is provided on a peripheral surface of the core body and includes a polyurethane foam obtained from at least a polyester polyol, a foam stabilizer, and a catalyst. Moreover, there is provided a charging member cleaning roller including: a core body; and an elastic layer that is provided on a peripheral surface of the core body and includes a urethane foam having an open-cell structure, a resilience of approximately 15% to 30%, and a hardness of approximately 150N to 230N.


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