发明申请
- 专利标题： Dynamical pressure bearing device, motor, and recording disc driving device
- 专利标题（中）： 动力承压装置，电动机和记录盘驱动装置
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申请号： US11296376申请日： 2005-12-08
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公开(公告)号： US20060132968A1公开(公告)日： 2006-06-22
- 发明人: Toshimasa Kobayashi , Masaki Nakamura , Taketo Nishimura , Hisatomu Yamamoto , Hideaki Ogata , Masaharu Ishiwata , Tomoyuki Iga , Yoko Yamagata
- 申请人： Toshimasa Kobayashi , Masaki Nakamura , Taketo Nishimura , Hisatomu Yamamoto , Hideaki Ogata , Masaharu Ishiwata , Tomoyuki Iga , Yoko Yamagata
- 申请人地址： JP Kyoto
- 专利权人： Nidec Corporation
- 当前专利权人： Nidec Corporation
- 当前专利权人地址： JP Kyoto
- 优先权： JP2004-356378 20041209
- 主分类号： G11B17/02
- IPC分类号： G11B17/02
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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