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:
Apr. 13, 2010
Filed:
Sep. 20, 2007
Shigeru Inaba, Kanagawa, JP;
Shota Oba, Kanagawa, JP;
Takashi Yamamuro, Kanagawa, JP;
Makoto Hirota, Kanagawa, JP;
Masahiro Andoh, Kanagawa, JP;
Shigeru Inaba, Kanagawa, JP;
Shota Oba, Kanagawa, JP;
Takashi Yamamuro, Kanagawa, JP;
Makoto Hirota, Kanagawa, JP;
Masahiro Andoh, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A developing device includes a housing that stores developer; a developing roll that is rotatably supported in the housing and has a developing region with a roughened surface that supplies developer to an image region of an image holding member; a step portion that is formed at both sides of the developing region of the developing roll and whose diameter is smaller than that of the developing region; and a seal member that contacts a region of the step portion that is opposite to the image holding member.