Invention Grant
- Patent Title: Motor and storage disk drive apparatus
- Patent Title (中): 电机和存储磁盘驱动装置
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Application No.: US12858903Application Date: 2010-08-18
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Publication No.: US08156513B2Publication Date: 2012-04-10
- Inventor: Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
- Applicant: Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-191832 20090821; JP2009-191833 20090821; JP2010-114620 20100518
- Main IPC: G11B19/20
- IPC: G11B19/20

Abstract:
A motor includes a bearing mechanism, a stationary unit including a stator arranged radially outwards of the bearing mechanism, and a rotary unit supported by the bearing mechanism at the upper side of the stationary unit for rotation about a center axis with respect to the stationary unit. The rotary unit includes a substantially cylindrical closed-top rotor yoke having a cover portion arranged to cover the stator. The bearing mechanism includes a substantially cylindrical closed-bottom bush formed by a press work, a sleeve fixed inside the bush and provided with an upper portion protruding beyond the bush and a shaft inserted into the sleeve. An upper end of the bush is lower than or flush with an upper end of the stator in a direction parallel to the center axis.
Public/Granted literature
- US20110047561A1 MOTOR AND STORAGE DISK DRIVE APPARATUS Public/Granted day:2011-02-24
Information query
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