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. 13, 1992
Filed:
Aug. 21, 1990
Applicant:
Inventors:
Shuichi Yanagisawa, Saitama, JP;
Tatsuro Sakai, Saitama, JP;
Fumio Mitsui, Saitama, JP;
Tsuneki Okazaki, Okayama, JP;
Ayashi Noguchi, Okayama, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430270 ; 430495 ; 430945 ; 3461351 ;
Abstract
An optical recording medium having a recording layer containing a particular cyanin coloring matter and a particular quencher. The material of the recording medium can be directly applied to the substrate without any damage to the substrate. The productivity of this recording medium is therefore high. This medium also has superior recording/reproduction characteristics.