发明授权
- 专利标题: Optical recording medium and manufacturing method thereof
- 专利标题(中): 光记录介质及其制造方法
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申请号: US89991申请日: 1998-06-03
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公开(公告)号: US6154439A公开(公告)日: 2000-11-28
- 发明人: Shin Masuhara , Masayoshi Kanno , Akitoshi Suzuki
- 申请人: Shin Masuhara , Masayoshi Kanno , Akitoshi Suzuki
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX9-152386 19970610
- 主分类号: G11B7/24
- IPC分类号: G11B7/24 ; G11B7/00 ; G11B7/007 ; G11B7/26 ; G11B7/30 ; G11B20/12
摘要:
An optical recording medium according to the present invention includes a data recording area forming a double spiral structured track having spiral recording tracks each formed of a groove and a land adjacent to the groove, and a reproduction only area forming a single spiral structured track consisting of a pit row.
公开/授权文献
- USD415679S Case for headphones 公开/授权日:1999-10-26
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