Recording medium, method for recording information, and method for reading information
US-2025054515-A1 · Feb 13, 2025 · US
Recordable optical recording medium
US8993086B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993086-B2 |
| Application number | US-201214001158-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 9, 2012 |
| Priority date | Feb 24, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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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.
First claim
Opening claim text (preview).
The invention claimed is: 1. A recordable optical recording medium comprising: a substrate having thereon at least a reflective layer; a recording layer formed by an organic dye; and a light transmission layer; the organic dye having an azo metal complex dye and an additive added to the azo metal complex dye; the azo metal complex dye having a triazole structure represented by the following general formula:…
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- G11B7/2467Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8993086B2 cover?
- 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 …
- Who is the assignee on this patent?
- Kodaira Takuo, Matsuda Isao, Yamada Eiji, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G11B7/2467. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).