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:
Jan. 02, 2007

Filed:

Mar. 08, 2005
Applicants:

Kunimasa Kawamata, Saitama, JP;

Hidekazu Yamagiwa, Saitama, JP;

Kazuaki Komatsubara, Niigata, JP;

Inventors:

Kunimasa Kawamata, Saitama, JP;

Hidekazu Yamagiwa, Saitama, JP;

Kazuaki Komatsubara, Niigata, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

A second opening and closing door has a main body of the second opening and closing door, a sound absorbing member and a sound absorbing member cover. The sound absorbing member covers almost the entire surface of the main body of the second opening and closing door facing a guide member. The sound absorbing member cover is dyed black and made of an antistatic-treated cloth material which has air permeability, and is designed to cover almost the entire surface of the sound absorbing member facing the guide member. Further, the sound absorbing member cover is dyed with a dye which does not contain carbon, so that carbon-containing fibrous materials can be prevented from floating in an image forming apparatus while the light-shielding effect can be maintained.


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