发明授权
US5981015A Method for selecting a material suitable for a substrate for information
recording media, material selected using this method, and magnetic disk
formed using this material
失效
用于选择适用于信息记录介质的基板的材料的方法,使用该方法选择的材料和使用该材料形成的磁盘
- 专利标题: Method for selecting a material suitable for a substrate for information recording media, material selected using this method, and magnetic disk formed using this material
- 专利标题(中): 用于选择适用于信息记录介质的基板的材料的方法,使用该方法选择的材料和使用该材料形成的磁盘
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申请号: US923143申请日: 1997-09-04
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公开(公告)号: US5981015A公开(公告)日: 1999-11-09
- 发明人: Xuelu Zou , Hisayoshi Toratani
- 申请人: Xuelu Zou , Hisayoshi Toratani
- 申请人地址: JPX Tokyo
- 专利权人: Hoya Corporation
- 当前专利权人: Hoya Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX8-233934 19960904
- 主分类号: C03C4/00
- IPC分类号: C03C4/00 ; G11B5/62 ; G11B5/73 ; G11B5/84 ; G11B7/24 ; G11B7/26 ; G11B5/66
摘要:
A method for seeking, from an outer circle radius a, an inner circle radius b, and a thickness h of a disc substrate and a deflection Wmax permissive at a time of rotation, a specific elastic modulus G that a material forming the substrate has, ##EQU1## The material for providing a substrate for information recording media having a thickness h of 0.6 millimeter and a deflection Wmax of 1.4 micrometer has a specific elastic modulus G satisfying above Formula (1).
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