Invention Grant
- Patent Title: Spindle motor and storage disk drive
- Patent Title (中): 主轴电机和存储磁盘驱动器
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Application No.: US13739415Application Date: 2013-01-11
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Publication No.: US08542459B2Publication Date: 2013-09-24
- Inventor: Junya Mizukami , Takayuki Oe , Yoichi Sekii , Naoki Sabashi , Takehito Tamaoka , Takashi Yamamoto , Shigeki Horiki , Kazushi Miura , Mitsuhiro Takemoto , Hironori Ando , Katsuya Takahashi
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2010-178965 20100809; JP2011-046788 20110303; JP2011-118832 20110527
- Main IPC: G11B17/02
- IPC: G11B17/02 ; H02K7/08 ; F16C32/06
Abstract:
A motor includes a seal cap and a tubular portion. The seal cap includes a first seal cap lower surface which is an annular surface facing axially downward, and a second seal cap lower surface which is an annular surface facing axially downward and arranged radially outward of the first seal cap lower surface. The tubular portion includes a first tubular portion upper surface which is an annular surface arranged axially opposite to the first seal cap lower surface, and a second tubular portion upper surface which is an annular surface arranged radially outward of the first tubular portion upper surface and in contact with the second seal cap lower surface. The first tubular portion upper surface includes an oil-repellent film region covered with an oil-repellent film. A substantially annular radially extending gap is defined between the first tubular portion upper surface and the first seal cap lower surface.
Public/Granted literature
- US20130120868A1 SPINDLE MOTOR AND STORAGE DISK DRIVE Public/Granted day:2013-05-16
Information query
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