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. 14, 1998
Filed:
Apr. 17, 1996
Applicant:
Inventors:
Yoshitomo Masuda, Hamura, JP;
Yasushi Inoue, Kodaira, JP;
Takahiro Kawagoe, Tokorozawa, JP;
Shigeru Kijima, Tokorozawa, JP;
Yuko Maeda, Akishima, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
361225 ;
Abstract
The invention provides a charging member for electrically charging an object by placing the member in contact with the object and applying voltage between them. The member includes a shaft and an elastic layer and a conductive layer successively formed around the shaft, and has a capacitance of up to 1.times.10.sup.-9 F. and preferably a surface roughness of up to 20 .mu.m on JIS ten point mean roughness scale. The charging member is effective for suppressing charging noise.