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:
Feb. 06, 2007
Filed:
Nov. 13, 2003
Applicants:
Kenichi Uesaka, Hyogo, JP;
Takayuki Hattori, Hyogo, JP;
Jun Ochi, Hyogo, JP;
Inventors:
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
B25F 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A conductive roller including a core metal and a conductive elastic layer disposed on a peripheral surface of the core metal. The conductive roller has an electrostatic capacity not more than 50 pF at 100 Hz and an electric resistance not less than 10Ω nor more than 10Ω at an applied voltage 1000V. An electrostatic capacity C (L) at an alternating low frequency (L) and an electrostatic capacity C (H) at an alternating high frequency (H) satisfy the following relationship:0<(()−())/(logHz()−logHz())<10.