发明名称 |
Dynamical pressure bearing device, motor, and recording disc driving device |
摘要 |
There is provided a dynamical pressure bearing device, a motor and a recording drive device. The dynamical pressure bearing device has a shaft having a first bearing surface and a first portion exteriorly adjacent to the first bearing surface; and a sleeve having a second bearing surface and a second portion exteriorly adjacent to the second bearing surface. The sleeve is rotatably engaged with the shaft with a clearance. The oil repellent film includes a fluorine polymer having a perfluoroalkyl group; and a chromogenic substance which makes color development in blue at UV irradiation.
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申请公布号 |
US2006132968(A1) |
申请公布日期 |
2006.06.22 |
申请号 |
US20050296376 |
申请日期 |
2005.12.08 |
申请人 |
NIDEC CORPORATION |
发明人 |
KOBAYASHI TOSHIMASA;NAKAMURA MASAKI;NISHIMURA TAKETO;YAMAMOTO HISATOMU;OGATA HIDEAKI;ISHIWATA MASAHARU;IGA TOMOYUKI;YAMAGATA YOKO |
分类号 |
G11B17/02 |
主分类号 |
G11B17/02 |
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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