Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tsuyoshi Yamamoto0
Akira Tsukihashi0
Satoru Miyoshi0
Shinichi Nakahashi0
Date of Patent
September 14, 2010
0Patent Application Number
111981130
Date Filed
August 5, 2005
0Patent Primary Examiner
Patent abstract
An optical disk comprising two layers including a signal recording layer and an image recording layer further comprises a metal reflective layer formed on a surface of the image recording layer on the incidence side of laser light. The image recording layer is capable of forming a visible image in response to an increase in temperature caused by application of laser light to the metal reflective layer. The visible image is capable of being visually observed from a side opposite to the incidence side.
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