发明公开
EP0125478A2 Magnetic record disk with internal servo track
失效
Magnetische Aufzeichnungsplatte mit interner Servospur。
- 专利标题： Magnetic record disk with internal servo track
- 专利标题（中）： Magnetische Aufzeichnungsplatte mit interner Servospur。
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申请号： EP84103878.9申请日： 1984-04-09
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公开(公告)号： EP0125478A2公开(公告)日： 1984-11-21
- 发明人: Krongelb, Sol , Romankiw, Lubomyr Taras , Scranton, Robert Alan , Thompson, David Allen
- 申请人： International Business Machines Corporation
- 申请人地址： Old Orchard Road Armonk, N.Y. 10504 US
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： Old Orchard Road Armonk, N.Y. 10504 US
- 代理机构： Burt, Roger James, Dr.
- 优先权： US494743 19830516
- 主分类号： G11B5/82
- IPC分类号： G11B5/82 ; G11B5/70
摘要：
A servo track in the form of a patterned thin metallic film (15; 25) is disposed between a magnetic record medium (14;: 24) and a dielectric substrate (12; 22). The dielectric substrate (12; 22) can be in the form of a coating on a metallic substrate (11; 21). Where the magnetic record medium is composed of magnetic particles bound in a matrix, the matrix and the dielectric substrate are preferably composed of the same material. An additional layer (26, Figure 2) of dielectric material may be disposed between the metallic servo track film (25) and the magnetic record medium (24).
公开/授权文献
- EP0125478B1 Magnetic record disk with internal servo track 公开/授权日：1991-10-09
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