MAGNETIC FUNCTIONAL FLUID, DAMPER AND CLUTCH USING MAGNETIC FUNCTIONAL FLUID
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United States of America Patent
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Issued Date -
Nov 20, 2014
app pub date -
May 14, 2014
filing date -
May 17, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Magnetic functional fluid includes dispersion medium; and dispersed particles which are dispersed in the dispersion medium, wherein the dispersed particles includes: first ferromagnetic particles having an average particle diameter of 0.5 μm to 50 μm; and second ferromagnetic particles each having a needle-like shape, each having a smaller particle size than the first ferromagnetic particles, and each having a length ratio of a long axis to a short axis of 2 or more.
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | B2 | JP6255715 | May 17, 2013 |
International Classification(s)
- 2014 Application Filing Year
- F16D Class
- 1365 Applications Filed
- 1201 Patents Issued To-Date
- 87.99 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- F16D Class
- 12.28 % this patent is cited more than
- 11 Age