发明申请
- 专利标题: Hard-Disk Drive Device
- 专利标题(中): 硬盘驱动器
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申请号: US11163634申请日: 2005-10-25
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公开(公告)号: US20070159717A1公开(公告)日: 2007-07-12
- 发明人: Kazuto Miyajima , Takehito Tamaoka , Hiroomi Ogawa
- 申请人: Kazuto Miyajima , Takehito Tamaoka , Hiroomi Ogawa
- 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: JP2004-308991 20041025; JP2005-310560 20051025
- 主分类号: G11B17/02
- IPC分类号: G11B17/02 ; G11B5/016
摘要:
In a low-profile disk drive device, the hard-disk carrying face of the spindle motor hub is finished to leave a spiral-patterned cutting track. Leaving the spiral-patterned cutting track increases the roughness of the carrying face, but seen in terms of the cutting-track hill portions themselves the surface unevenness is reduced. Because the disk is supported on the hill portions, warpage in the disk is attenuated.