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. 18, 1995
Filed:
Mar. 29, 1994
Applicant:
Inventors:
Yoshio Takizawa, Fussa, JP;
Koji Takagi, Kodaira, JP;
Hiroshi Harashima, Kodaira, JP;
Hiroshi Kaneda, Kodaira, JP;
Hideyuki Niwa, Sayama, JP;
Taro Miyamoto, Kodaira, JP;
Gaku Yakushiji, Kodaira, JP;
Takahiro Kawagoe, Tokorozawa, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355259 ; 118661 ; 492 59 ;
Abstract
A developing roller includes a metal shaft and a conductive resilient sleeve surrounding the shaft and made of a urethane elastomer containing carbon black with at least pH 5. The developing roller is mounted in an electrophotographic apparatus in combination with a latent image-bearing photoreceptor wherein development is carried out using a non-magnetic single-component toner.