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. 17, 2007
Filed:
Mar. 15, 2005
Akihiko Kawahara, Nara, JP;
Tadayuki Sawai, Nara, JP;
Kazuya Korematu, Nara, JP;
Toru Nishikawa, Yamatokoriyama, JP;
Akihiko Kawahara, Nara, JP;
Tadayuki Sawai, Nara, JP;
Kazuya Korematu, Nara, JP;
Toru Nishikawa, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A non-magnetic single component developing device that is included in combination with a photoreceptor in an image forming apparatusof the electro-photographic system. The non-magnetic single component developing device includes a developing roller, a supplying roller, a doctor, a toner bath and a stirring blade. The supplying roller contains a rubber foam at least in its surface layer portion, the rubber foam including closed cells and open cells and having a foam ratio (porosity) of 0.75 to 0.85 and an average foam cell diameter of 350 to 500 μm.