发明名称 |
Longitudinal magnetic recording media and magnetic storage apparatus using the same |
摘要 |
The magnetic storage apparatus has a high reliability at a recording density of 2 gigabits or more per square inch. The longitudinal recording media necessary to realize the apparatus has a low media noise and is immune from the influence of thermal fluctuations. The magnetic storage apparatus has a longitudinal magnetic recording media including a magnetic layer which is formed on a substrate via a multi-layered underlayer; a driver for driving the recording media in a recording direction; a magnetic head including a recording section and a read-back section; a driver for moving the magnetic head relatively with respect to the longitudinal magnetic recording media; and a read/write signal processor for processing input signals to the magnetic head and output signal read-back therefrom. The read-back section of the magnetic head includes a magnetoresistive head. One layer of the multi-layered underlayer in the longitudinal magnetic recording media which is in contact with the magnetic layer has a substantially hexagonal close-packed (hcp) structure and has crystal grains whose c-axes are substantially parallel with the substrate plane.
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申请公布号 |
US6001447(A) |
申请公布日期 |
1999.12.14 |
申请号 |
US19980004318 |
申请日期 |
1998.01.08 |
申请人 |
HITACHI, LTD. |
发明人 |
TANAHASHI, KIWAMU;HOSOE, YUZURU;TAMAI, ICHIRO;KANBE, TETSUYA;YAMAMOTO, TOMOO;IGARASHI, MASUKAZU;TAKAHASHI, YOSHIO |
分类号 |
G11B5/66;G11B5/39;G11B5/64;G11B5/65;G11B5/73;G11B5/738;H01F10/16;(IPC1-7):G11B5/66 |
主分类号 |
G11B5/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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