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:
Jun. 13, 1995
Filed:
Apr. 01, 1993
Shuichi Yanagisawa, Tsurugashima, JP;
Satoru Tanaka, Tsurugashima, JP;
Fumio Matsui, Tsurugashima, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An optical recording medium provided with: a light transmissive substrate; and a recording film and a reflective film which are formed on the light transmissive substrate. The recording film includes phthalocyanine dye expressed by the following general expression [I], ##STR1## wherein R.sub.1 and R.sub.2 represent either of hydrogen, hydroxyl group, alkoxyl group, and straight chained or side chained alkyl group, respectively, R.sub.3 to R.sub.6 represent either of substituted or non-substituted alkyl group, sulfino group, amino group, or sulfonic acid group, respectively, q represents the number of substituents and is the integer of 0 to 4, and Me represents a metal atom.