Optical information recording medium, originial di

专利名称：Optical information recording medium,

originial disk for optical informationrecording medium, and method ofmanufacturing the original disk

发明人：Hiroyuki Takemoto,Mitsuo Arima,Tadao

Suzuki,Yoshihito Fukushima,HiroshiNakayama,Atsushi Takeuchi

申请号：US10344700申请日：20031008

公开号：US20040066732A1公开日：20040408

专利附图：

摘要：An optical information recording medium, which includes both of a land surfaceand a groove surface as a recording track and presents high signal quality. The opticalinformation recording medium includes both a land and a groove as the recording trackon a substrate, in which a laser light is irradiated from a reverse side of the substrate tothereby carry out a recording and a reproduction, and an inclination angle of a grooveside is 25° or more and 40° or less, and both of arithmetic average roughness (Ra) on theland surface and the groove surface are assumed to be 0.2 to 0.7 nm.

申请人：TAKEMOTO HIROYUKI,ARIMA MITSUO,SUZUKI TADAO,FUKUSHIMAYOSHIHITO,NAKAYAMA HIROSHI,TAKEUCHI ATSUSHI

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