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. 29, 2009
Filed:
Jun. 13, 2007
Tetsuo Sano, Toyokawa, JP;
Yohei Nakade, Okazaki, JP;
Ichiro Demizu, Toyonaka, JP;
Yoshikazu Aoki, Toyokawa, JP;
Yuusuke Okuno, Toyokawa, JP;
Tetsuo Sano, Toyokawa, JP;
Yohei Nakade, Okazaki, JP;
Ichiro Demizu, Toyonaka, JP;
Yoshikazu Aoki, Toyokawa, JP;
Yuusuke Okuno, Toyokawa, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Abstract
An image forming apparatus has an electrostatic latent image bearing member capable of bearing an electrostatic latent image thereon, and a developer apparatus having a developer material for visualizing the electrostatic latent image into a visualized image. The developer apparatus includes a developer material bearing member, a housing adapted to accommodate a developer material, and a supply roller adapted to supply the developer material within the housing for the developer material bearing member. The supply roller has an outer circumferential foam layer. The foam layer is made of resin foam or rubber foam and has an air permeability of 5 ml/cm/s or less, a density of 50-200 kg/m, and a hysteresis loss ratio of 35-45%.