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:
Jul. 16, 2013
Filed:
Dec. 30, 2010
Ichiro Kadota, Kanagawa, JP;
Kunihiro Ohyama, Tokyo, JP;
Masayuki Yamane, Kanagawa, JP;
Takeshi Uchitani, Kanagawa, JP;
Satoru Yoshida, Kanagawa, JP;
Takuya Seshita, Kanagawa, JP;
Ichiro Kadota, Kanagawa, JP;
Kunihiro Ohyama, Tokyo, JP;
Masayuki Yamane, Kanagawa, JP;
Takeshi Uchitani, Kanagawa, JP;
Satoru Yoshida, Kanagawa, JP;
Takuya Seshita, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A development device includes a toner-containing chamber for containing supplied toner having an interior wall, a developer-containing chamber for containing developer including toner and carrier communicating with the toner-containing chamber; and a transport screw to transport the supplied toner from the toner-containing chamber to the developer-containing chamber, disposed in the toner-containing chamber so that there is no gap between the outer edge of the transport screw and the interior wall of the toner-containing chamber in a portion lower than a level of the supplied toner in the toner-containing chamber.