Hydrodynamic bearing device, and spindle motor and information device using the same
US7737095B2 · kind B2 · utility
1Cited by
3References
1Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 24, 2006 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Mar 16, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydrodynamic bearing device comprises at least one of a rotating component and a fixed component having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the rotating component and the fixed component; wherein the lubricant contains at least one compound selected from the group consisting of aliphatic ethers having one or more ether bonds and a total carbon number of 24 to 39.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.