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:
Nov. 13, 2012
Filed:
Aug. 25, 2011
Takashi Miyazawa, Minato-ku, JP;
Yutaka Kurose, Minato-ku, JP;
Hisashi Shoda, Minato-ku, JP;
Kenichi Satake, Minato-ku, JP;
Yukiko Takahashi, Minato-ku, JP;
Mayumi Kimura, Minato-ku, JP;
Naoyuki Uchida, Minato-ku, JP;
Hideki Tamagawa, Minato-ku, JP;
Takashi Miyazawa, Minato-ku, JP;
Yutaka Kurose, Minato-ku, JP;
Hisashi Shoda, Minato-ku, JP;
Kenichi Satake, Minato-ku, JP;
Yukiko Takahashi, Minato-ku, JP;
Mayumi Kimura, Minato-ku, JP;
Naoyuki Uchida, Minato-ku, JP;
Hideki Tamagawa, Minato-ku, JP;
Mitsubishi Kagaku Media Co., Ltd., Tokyo, JP;
Abstract
An optical recording medium having excellent light resistance that includes a substrate; and a recording layer which is provided on the substrate directly or on another layer provided on the substrate, wherein the recording layer is capable of recording and/or reading information by irradiating light thereon, the recording layer including a metal complex compound comprising an azo compound having a coupler component with a Meldrum's acid structure and a diazo component with a nitrogen-containing heterocyclic aromatic ring structure, and a metal ion coordinated to the azo compound.