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, 2000
Filed:
Apr. 16, 1999
Applicant:
Inventor:
Naka Hirayama, Tokyo, JP;
Assignee:
Nitto Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
702115 ; 702 40 ; 492-9 ;
Abstract
An electroconductive roller which is to be installed in an image forming apparatus is provided with a core, a roller body which includes an elastic member having conductivity, and is provided on the outer circumference of said core, and an electroconductive coating layer covering an outer circumferential surface of said roller body. When glossiness of said coating layer is measured, a difference between common logarithms of a maximum value and a minimum value of measurement values is less than 0.1.