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. 30, 2001
Filed:
Jun. 07, 2000
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 3/300 ;
U.S. Cl.
CPC ...
B41J 3/300 ;
Abstract
An ink ribbon adapted to be used for a sublimation type thermal transfer printer, said ink ribbon comprises a ribbon-shaped substrate, ink layers formed on a surface of said substrate and containing dyes, sensor marks formed on said surface of said substrate and a back coat layer formed on the other surface of said substrate, said sensor marks containing first carbon black with an average particle diameter of 30 nm or less and second carbon black with an average particle diameter of 270 nm or more. Such an ink ribbon significantly improve the reliability of detecting sensor marks and the shelf life.