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Self-pressure-balanced hydrodynamic bearing spindle motor 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02K-005/16
  • F16C-032/06
출원번호 US-0839724 (1997-04-15)
발명자 / 주소
  • Wang Jian M.
  • Sun Leoi
  • Cheever Charles J.
  • Gray Frank A.
출원인 / 주소
  • SAE Magnetics (H.K.) Ltd.
대리인 / 주소
    Chernoff, Vilhauer, McClung & Stenzel, LLP
인용정보 피인용 횟수 : 52  인용 특허 : 0

초록 ▼

A hydrodynamic spindle motor of the present invention may include a shaft having a thrust bearing plate, an insert surrounding the shaft above the thrust bearing plate, and a sleeve surrounding the shaft below the thrust bearing plate. In one embodiment the thrust bearing plate is substantially cent

대표청구항 ▼

[ We claim:] [1.] A spindle motor having hydrodynamic bearings, said motor comprising:(a) a shaft having a radial thrust bearing plate substantially perpendicular to said shaft, said thrust bearing plate having upper and lower radial plate surfaces, said shaft having a shaft outer diameter and a lon

이 특허를 인용한 특허 (52)

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  6. Ionel,Dan M.; Dellinger,Stephen J., Brushless permanent magnet machine with reduced cogging and torque ripple and method of producing the same.
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  7. Ionel,Dan M.; Dellinger,Stephen J., Brushless permanent magnet machine with reduced cogging and torque ripple and method of producing the same.
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  8. Flores,Paco; Aiello,Anthony J.; Kloeppel,Klaus D., Capillary reservoir for FDB motors.
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  9. Flores,Paco; Aiello,Anthony J.; Kloeppel,Klaus D.; Grantz,Alan L., Column capillary seal for FDB motors.
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  10. Lee, Changha, Cooling unit of air compressor for fuel cell vehicle.
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  11. Itami Yukio,JPX ; Suzuki Mitsuo,JPX, Direct-current brushless motor, and polygon scanner and image forming apparatus having the same and a method thereof.
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  12. Yukio Itami JP; Mitsuo Suzuki JP, Direct-current brushless motor, and polygon scanner and image forming apparatus having the same and a method thereof.
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  13. Schuster, Johann, Dynamic gas bearing of a motor spindle comprising aeration.
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  14. Kawawada Naoki,JPX ; Takehara Isamu,JPX, Dynamic pressure bearing, spindle motor using dynamic pressure bearing, and rotary device having the spindle motor as driving source.
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  17. Khan, Raquib Uddin; Flores, Paco; Kloeppel, Klaus Dieter; Aiello, Anthony Joseph, Electrostatic discharge apparatus for hub and spindle assemblies.
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  18. Wang Yuming,CNX, Face seal with spiral grooves.
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  19. Bauer, Martin, Fluid dynamic bearing having pressure-generating surface patterns.
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  20. Bauer, Martin, Fluid dynamic bearing having pressure-generating surface patterns.
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  21. Grantz, Alan L.; Le, Lynn B.; Kloeppel, Klaus, Fluid pumping capillary seal for a fluid dynamic bearing.
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  22. Aiello, Anthony J., Groove configuration for a fluid dynamic bearing.
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  23. Dittmer,Daniel D.; Parkhomovsky,Alexander, High pressure barrier to oil loss by diffusion.
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  24. Dittmer,Daniel D.; Parkhomovsky,Alexander, High pressure barrier to oil loss by diffusion.
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  25. LeBlanc, Jeffry Arnold; Herndon, Troy Michael; Nottingham, Robert Alan; Grantz, Alan Lyndon, Hub and spindle assembly.
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  27. Oh, Jong Ryeol; Jang, Ho Kyung, Hydrodynamic bearing assembly.
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  28. Ichiyama Yoshikazu,JPX, Hydrodynamic bearing for use in an electric motor and an electric motor having the hydrodynamic bearing.
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  29. Grantz Alan Lyndon ; Parsoneault Norbert Steven ; Murthy Samnathan ; Leuthold Hans ; Rahman Mohamed Mizanur, In-hub spindle motor with separate fluid dynamic bearings.
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  30. Grantz, Alan Lyndon; Parsoneault, Norbert Steven; Murthy, Samnathan; Leuthold, Hans; Rahman, Mohamed Mizanur, In-hub spindle motor with separate fluid dynamic bearings.
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  31. Kull, Andreas, Low power spindle motor with a fluid dynamic thrust bearing having a reduced outer diameter.
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  32. Kull, Andreas, Low power spindle motor with a stepped shaft.
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  33. Aiello,Anthony Joseph; Flores,Paco Gregor; Khurram,Ali; Kloeppel,Klaus Dieter, Low profile air-oil hybrid fluid dynamic bearing motor.
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  34. Young Lionel Allan, Mechanical seal assembly with improved fluid circulation.
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  35. Ichiyama Yoshikazu,JPX, Motor and method for manufacturing the same.
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  40. Li, Nien-Lun, Oil-circulating structure for fan.
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  41. Becattini, Jr., Fernando; Becattini, Sr., Fernando; Becattini, Jacquelyn N.; Copeland, Steve A.; Thompson, Mitchell, Pet chew toy.
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  43. Flores, Paco Gregor; McConnell, Matthew M., Rotating shaft top cover attached motor.
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  44. Yamamoto Kazuyuki,JPX ; Ogiso Kenichi,JPX ; Matsukawa Kouei,JPX, Spindle motor.
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  45. Kull, Andreas; Hoffman, Joerg; Winterhalter, Olaf, Spindle motor and hard disk drive.
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  46. Kawawada Naoki,JPX ; Namiki Hiroaki,JPX ; Takehara Isamu,JPX ; Iwaki Tadao,JPX ; Ishida Takashi,JPX ; Hayashizaki Shinichi,JPX ; Shimaguchi Hirotada,JPX ; Konno Katsushige,JPX, Spindle motor and rotator device.
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  47. Kull,Andreas, Spindle motor for hard disk drives.
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  48. Kull, Andreas, Spindle motor for hard disk drives having a hydrodynamic bearing arrangement.
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  49. Lee Chen-Hsiung ; Sullivan James Francis, Spindle motor with hybrid air/oil hydrodynamic bearing.
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  50. Sugi, Takatoki; Yoneda, Tomohiro; Kobayashi, Hiroshi, Spindle motor, and disk drive apparatus including the spindle motor.
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  51. Parsoneault, Norbert Steven; Flores, Gregor; Nottingham, Robert Alan; Herndon, Troy Michael; LeBlanc, Jeffry Arnold, Spindle regions.
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  52. LeBlanc,Jeffry A., Top cover attached single plate fluid dynamic bearing motor.
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