专利检索 ap:("Toshihiro Komaki" OR "Hideo Kudo" OR "Tomonori Ishizuki" OR "Ryoichi Hirota" OR "Masahiro Katsumura" OR "Seishi Maita") AND inv:"Seishi Maita" 第 1 页

1.

发明授权
Phase change optical information recording medium including means for preventing movement of the recorded portion 失效
标题翻译：相位变化光信息记录介质，包括防止记录部分运动的手段

公开(公告)号：US5179547A

公开(公告)日：1993-01-12

申请号：US706164

申请日：1991-05-28

申请人： Toshihiro Komaki , Hideo Kudo , Tomonori Ishizuki , Ryoichi Hirota , Masahiro Katsumura , Seishi Maita

发明人： Toshihiro Komaki , Hideo Kudo , Tomonori Ishizuki , Ryoichi Hirota , Masahiro Katsumura , Seishi Maita

IPC分类号： G11B7/00 , G11B7/007 , G11B7/013 , G11B7/24 , G11B7/26 , G11B7/30

CPC分类号： G11B7/24085 , G11B7/24 , G11B7/26

摘要： On the phase change optical information recording medium, a plurality of protection pits each smaller than one pit on the pre-pit region are provided over the entire data region of the recording film at least on its surface. Therefore, even when overwriting is repeatedly performed, the reproduced data waveform is distorted less frequently and data error is reduced. By forming the group of protection pits, the adhesive strength between the phase change recording film and the protective film can be increased, and the reliability of exfoliating strength can be improved.