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:
Dec. 16, 1997
Filed:
Sep. 18, 1995
Applicant:
Inventors:
Takeshi Kubota, Tokyo-to, JP;
Hachiro Saito, Tokyo-to, JP;
Seiichi Nishikawa, Tokyo-to, JP;
Tetsuo Komori, Tokyo-to, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 647 ; 428212 ; 428412 ; 427551 ; 3692755 ; 369283 ; 369286 ;
Abstract
The present invention relates to an optical recording medium which has excellent scratch resistance and resistance to cracking derived from warpage and bending. It comprises a card substrate; and, laminated on the card substrate, an optical recording member comprising a laminate of a transparent protective layer and an optical recording material layer, wherein a specific surface hard layer is provided on the transparent protective layer.
Kubota, Takeshi. (1997). Optical recording medium (U.S. Patent No. 5698284). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5698284
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile