发明授权
- 专利标题： Optical disk substrate
- 专利标题（中）： 光盘基板
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申请号： US104271申请日： 1987-10-05
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公开(公告)号： US4802160A公开(公告)日： 1989-01-31
- 发明人: Takashi Yamada , Masaaki Nomura , Ryoichi Yamamoto , Akira Nahara
- 申请人： Takashi Yamada , Masaaki Nomura , Ryoichi Yamamoto , Akira Nahara
- 申请人地址： JPX Minami-ashigara
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人地址： JPX Minami-ashigara
- 优先权： JPX61-237729 19861006
- 主分类号： G11B7/24
- IPC分类号： G11B7/24 ; G11B7/26 ; G11B7/00 ; G11B25/04
摘要：
An optical disk substrate has a surface on which a pre-groove for light beam tracking is formed. Non-pregrooved regions on the substrate surface on which the pregroove is formed are subjected to surface roughing processing to improve adhesion of the substrate surface in the non-pregrooved regions to a film which is to be overlaid on the optical disk substrate.
公开/授权文献
- US6060657A Lead-chalcogenide superlattice structures 公开/授权日：2000-05-09
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