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:
Feb. 05, 1991
Filed:
Jul. 11, 1989
Applicant:
Inventors:
Katsuhira Yoshida, Kochi, JP;
Yuji Kubo, Kochi, JP;
Assignee:
Mitsubishi Kasei Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430495 ; 430270 ; 430945 ; 428 64 ;
Abstract
An optical recording medium of a metal-containing indoaniline compound having the formula: ##STR1## wherein M is a metal atom selected from the group consisting of Ni, Cu or Co, R.sup.1 is a hydrogen atom, a halogen atom or a methyl group, n is 1 or 2, X is a hydrogen atom or a lower alkyl group, each of R.sup.2 and R.sup.3 is a lower alkyl group, and Z.sup.- is an anion, as a dye on a substrate.