发明授权
- 专利标题： High density optical disk and a method for manufacturing same
- 专利标题（中）： 高密度光盘及其制造方法
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申请号： US09264735申请日： 1999-03-09
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公开(公告)号： US06407979B1公开(公告)日： 2002-06-18
- 发明人: Hiroyuki Matsumoto , Seiji Morita , Masatoshi Hayashi
- 申请人： Hiroyuki Matsumoto , Seiji Morita , Masatoshi Hayashi
- 优先权： JP7-316595 19951205; JP8-000810 19960108; JP8-042995 19960219; JP8-054488 19960312; JP8094539 19960416
- 主分类号： G11B724
- IPC分类号： G11B724
摘要：
A high density disk and a method of manufacturing the same is disclosed. High density is achieved by narrowing groove pitch and increasing groove depth in a manner which does not sacrifice any desirable features of the high density optical disk medium.
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