| 发明名称 |
SPINDLE MOTOR AND MAGNETIC DISK DEVICE USING THE SAME |
| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize a spindle motor which is small in the vibration asynchronous with rotation, is high in rigidity, is low in loss torque and is high in impact resistance and a magnetic disk device equipped with the motor. SOLUTION: The ratable support of a hub is carried out by using a thrust ball bearing and a radial dynamic pressure bearing.</p> |
| 申请公布号 |
JP2001135014(A) |
申请公布日期 |
2001.05.18 |
| 申请号 |
JP19990317764 |
申请日期 |
1999.11.09 |
| 申请人 |
HITACHI LTD |
发明人 |
MATSUKI TAKASHI;MURANISHI MASARU;HONDA SHOHEI;NISHIMURA YUJI |
| 分类号 |
G11B19/20;F16C21/00;H02K5/173;H02K7/08;H02K21/22;(IPC1-7):G11B19/20 |
主分类号 |
G11B19/20 |
| 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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