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. 01, 2003
Filed:
Dec. 18, 2000
Applicant:
Inventors:
Satoshi Fujioka, Nagano, JP;
Hiroshi Asawa, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 1/158 ; B41J 1/302 ; B41J 1/520 ; B41J 1/126 ;
U.S. Cl.
CPC ...
B41J 1/158 ; B41J 1/302 ; B41J 1/520 ; B41J 1/126 ;
Abstract
A transport roller has high rigidity and the surface supported at its center portion thereof is formed as a low-friction surface by the polish finishing process and the surface thereof except for the low-friction surface is formed as a high-friction surface by the ceramic coating process. The driven roller is disposed so as to oppose to the low-friction surface in a manner that the surface thereof extends over the boundary of the low-friction surface and the high-friction surface The driven roller may be disposed in a manner that the surface thereof extends over the entire width of the low-friction surface