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:
Oct. 17, 1989
Filed:
Jun. 07, 1988
Applicant:
Inventors:
Ryoichi Shibata, Saitama, JP;
Toshiyuki Kasakoshi, Saitama, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
219469 ; 219216 ; 355286 ;
Abstract
The resistive layer of an electrically heated toner fixing roll includes a Fe-Cr-Al metal alloy phase and a ceramic substrate phase thermally sprayed onto the surface of a thermally and electrically insulated metal roll. The ceramic substrate can be Al.sub.2 O.sub.3 and the alloy can be 64-89 wt % Fe; 10-30 wt % Cr; and 2-10 wt % Al. Al.sub.2 O.sub.3 can be the insulating layer, and the metal roll can be iron, or an iron-based alloy.