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:
Mar. 12, 1991
Filed:
Aug. 17, 1988
Yoshio Inagaki, Minami-Ashigara, JP;
Keiichi Adachi, Minami-Ashigara, JP;
Masao Yabe, Fujinomiya, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An optical information recording medium for carrying out recording, readout or erasing with layer beams, which comprises a support having carried thereon at least one compound represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 independently represent substituted or unsubstituted alkyl groups, or substituted or unsubstituted aryl groups, Z represents an atomic group for forming a substituted or unsubstituted aromatic ring, and L represents a linking group for forming a carbocyanine. The present optical information recording media have an excellent recording performance and stability, and dyes used therein have no explosive property and thus can safely and readily be prepared.