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. 31, 2015
Filed:
Feb. 09, 2012
Applicants:
Takuo Kodaira, Tokyo, JP;
Isao Matsuda, Tokyo, JP;
Eiji Yamada, Tokyo, JP;
Inventors:
Assignee:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01); G11B 7/2467 (2013.01); G11B 7/24035 (2013.01); G11B 7/249 (2013.01);
U.S. Cl.
CPC ...
G11B 7/2467 (2013.01); G11B 7/24035 (2013.01); G11B 7/249 (2013.01);
Abstract
A recordable optical recording medium is provided enabling reliably preventing the deterioration of the recording characteristics, even when stored for a long period of time in an environment of high temperature and humidity. A recordable optical recording medium includes a substrate, and on the substrate, a reflective layer, a recording layer, a protective layer, a light transmission layer in a single layer structure having optical transparency, and a hard coat layer. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure.