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:
Jan. 22, 1991
Filed:
Jul. 13, 1989
Applicant:
Inventors:
Toshiyuki Kanno, Tokyo, JP;
Hitoshi Watanabe, Tokyo, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 64 ; 428 65 ; 428913 ; 430495 ; 430945 ; 367288 ;
Abstract
An optical information recording medium has an optical information recording layer and a carrier for carrying said recording layer. The recording layer contains at least one organic dye represented by a formula: ##STR1## where R is a substituted or nonsubstituted phenylene group or naphthylene group, L is a methyne-based group, and Y is an unsaturated organic group.