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:
Dec. 28, 2010
Filed:
Jun. 13, 2007
Tetsuo Sano, Toyokawa, JP;
Yohei Nakade, Okazaki, JP;
Ichiro Demizu, Toyonaka, JP;
Yoshikazu Aoki, Toyokawa, JP;
Yuusuke Okuno, Toyokawa, JP;
Takuya Okada, Okazaki, JP;
Tetsuo Sano, Toyokawa, JP;
Yohei Nakade, Okazaki, JP;
Ichiro Demizu, Toyonaka, JP;
Yoshikazu Aoki, Toyokawa, JP;
Yuusuke Okuno, Toyokawa, JP;
Takuya Okada, Okazaki, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Abstract
A developing device has a developer bearing member, a housing adapted to accommodate a developer, and a supply roller adapted to supply the developer within the housing for the developer bearing member. The supply roller has an outer circumferencial foam layer made of resin or rubber. The foam layer has an air permeability of 150-200 ml/cm/s, a hardness of 50-200 N, and an average cell density of 20-40 per 25 mm width.