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:
Sep. 20, 1994
Filed:
May. 05, 1993
Applicant:
Inventors:
Makoto Sakamoto, Tokyo, JP;
Michiko Tamano, Tokyo, JP;
Assignee:
Toyo Ink Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430270 ; 430495 ; 430945 ; 540128 ; 540139 ; 540140 ;
Abstract
An optical recording medium which has physical and chemical stability, has high sensitivity to laser light and permits accurate recording and highly reliable reproduction. The medium comprises a transparent substrate and a recording layer formed on the substrate, the recording layer being formed of an organic thin layer containing at least one of phthalocyanine compounds of the formula [1].