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. 12, 2012
Filed:
Feb. 19, 2007
Satoshi Yanagisawa, Tokyo, JP;
Yusuke Kubota, Tokyo, JP;
Satoshi Yanagisawa, Tokyo, JP;
Yusuke Kubota, Tokyo, JP;
Adeka Corporation, Tokyo, JP;
Abstract
An optical recording medium having a substrate and an optical recording layer on the substrate. The optical recording layer is formed of an optical recording material containing at least one heterocyclic compound represented by general formula (I):wherein Zrepresents oxygen, sulfur, —CRR—, etc. (Rand Rare each a substituent, e.g., an alkyl group or an aralkyl group, or are taken together to form a ring); Rand Reach represent hydrogen, etc.; Rand Reach represent an alkyl group having 1 to 8 carbon atoms or are taken together to form a heterocyclic ring having no multiple bond; Yrepresents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a metallocene substituent, etc.; Anrepresents a q-valent anion; q represents 1 or 2; p represents a number necessary to neutralize an electric charge; and n represents a number of 1 to 4.