Invention Grant
US07781383B2 Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit
有权
用于流体动力轴承的润滑剂，配备的主轴电机和磁盘单元
- Patent Title: Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit
- Patent Title (中): 用于流体动力轴承的润滑剂，配备的主轴电机和磁盘单元
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Application No.: US11400197Application Date: 2006-04-10
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Publication No.: US07781383B2Publication Date: 2010-08-24
- Inventor: Takanori Shiraishi , Hideaki Ohno , Katsushi Hirata
- Applicant: Takanori Shiraishi , Hideaki Ohno , Katsushi Hirata
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2005-113827 20050411
- Main IPC: C07D233/14
- IPC: C07D233/14 ; C10M135/06
Abstract:
A lubricant, comprising: a base oil as primary lubricant component, and a naphthenate salt as additive (A), and an alkylimidazole compound as additive (B), added to the base oil, preferably further comprising an aliphatic amine compound as additive (C), a fluid dynamic bearing with the lubricant filled therein, a spindle motor with the fluid dynamic bearing installed therein, and a magnetic disk device with the spindle motor installed therein.
Public/Granted literature
- US20060252658A1 Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit Public/Granted day:2006-11-09
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