Invention Grant
- Patent Title: Optical recording medium, and, method for manufacturing the same, and method and apparatus for optical recording and reproducing thereof
- Patent Title (中): 光记录介质及其制造方法及其光记录和再现方法和装置
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Application No.: US11113021Application Date: 2005-04-25
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Publication No.: US07767284B2Publication Date: 2010-08-03
- Inventor: Michiaki Shinotsuka , Masaru Shinkai , Hiroyuki Iwasa , Tatsuo Mikami , Yuki Nakamura , Tohru Yashiro
- Applicant: Michiaki Shinotsuka , Masaru Shinkai , Hiroyuki Iwasa , Tatsuo Mikami , Yuki Nakamura , Tohru Yashiro
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2004-133993 20040428
- Main IPC: B32B3/02
- IPC: B32B3/02

Abstract:
The object of the present invention is to provide an optical recording medium which comprises a substrate, and a first information layer and a second information layer disposed on the substrate, and an intermediate layer disposed between the first information layer and the second information layer, wherein any one of recording and reproducing is performed in the first information layer and the second information layer by irradiating a laser beam from the first information layer side, the second information layer comprises a protective layer, a second dye layer which comprises an organic dye, an oxidized layer, and a reflective layer in this order from the laser beam irradiation side, and the oxidized layer comprises an oxide which is a material constituting the reflective layer.
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