发明名称 |
Magnetic recording media and process of fabricating |
摘要 |
A process for fabricating a magnetic recording medium such as a disk medium having a uniformly high degree of magnetic particle randomization. The process includes steps of: forming a magnetic layer by applying a magnetic liquid to a continuously running support, and randomly orienting the magnetic layer by applying an AC magnetic field thereto while the magnetic layer is wet. The randomizing step is accomplished such that the magnetic field intensity of the applied AC magnetic field is 1/10 to 1/1 of the magnetic coercive force of the magnetic particles of the magnetic layer, and the frequency (Hz) of the field is set with respect to the running rate of the magnetic layer through the magnetic field so as to form a ratio to the application rate (m/min) within a range of 1/10 to 1/1.
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申请公布号 |
US4791032(A) |
申请公布日期 |
1988.12.13 |
申请号 |
US19870131688 |
申请日期 |
1987.12.11 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KOMATSU, KAZUNORI;SATO, TSUNEHIKO |
分类号 |
G11B5/845;(IPC1-7):H01F10/02 |
主分类号 |
G11B5/845 |
代理机构 |
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主权项 |
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地址 |
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