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Eiichi Yamakawa

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  • Kakamigahara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotor blade flap drive apparatus
    • Patent number 6,499,690
    • Issue date Dec 31, 2002
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Noriaki Katayama
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Flap support mechanism and a flap-equipped rotor blade
    • Patent number 6,454,207
    • Issue date Sep 24, 2002
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Helicopter blade aerofoil and helicopter blade
    • Patent number 6,315,522
    • Issue date Nov 13, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Constant speed drive apparatus for aircraft generator and traction...
    • Patent number 6,312,358
    • Issue date Nov 6, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Tatsuhiko Goi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotor blade flap driving apparatus
    • Patent number 6,273,681
    • Issue date Aug 14, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Flight path indicated apparatus
    • Patent number 6,272,404
    • Issue date Aug 7, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Takaki Amano
    • G02 - OPTICS
  • Information Patent Grant

    Power transmission apparatus for helicopter
    • Patent number 6,254,504
    • Issue date Jul 3, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Tatsuhiko Goi
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Rotor blade for rotary wing aircraft
    • Patent number 6,231,308
    • Issue date May 15, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Natsuki Kondo
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Low-noise level landing apparatus and system for helicopters
    • Patent number 6,198,991
    • Issue date Mar 6, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • G08 - SIGNALLING
  • Information Patent Grant

    Rotor blade for rotorcraft
    • Patent number 6,190,132
    • Issue date Feb 20, 2001
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Helicopter blade aerofoil
    • Patent number 6,164,918
    • Issue date Dec 26, 2000
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Makoto Aoki
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Rotor blade flap driving apparatus
    • Patent number 6,109,870
    • Issue date Aug 29, 2000
    • Advanced Technology Institute Of Commuter-Helicopter, LTD.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Compensation apparatus for main rotor torque
    • Patent number 6,053,452
    • Issue date Apr 25, 2000
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Helicopter blade aerofoil
    • Patent number 5,961,290
    • Issue date Oct 5, 1999
    • Advanced Technology Institute Of Commuter-Helicopter, LTD.
    • Makoto Aoki
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    helicopter blade aerofoil
    • Patent number 5,957,662
    • Issue date Sep 28, 1999
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Makoto Aoki
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Engine deceleration device and power transmission device for helico...
    • Patent number 5,782,433
    • Issue date Jul 21, 1998
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Tatsuhiko Goi
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Higher harmonic control apparatus for a helicopter rotor
    • Patent number 5,655,878
    • Issue date Aug 12, 1997
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Helicopter rotor equipped with flaps
    • Patent number 5,639,215
    • Issue date Jun 17, 1997
    • Advanced Technology Institute of Commuter-Helicopter, Ltd.
    • Eiichi Yamakawa
    • B64 - AIRCRAFT AVIATION COSMONAUTICS