Patents by Inventor Kyota Yamada

Kyota Yamada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Audio-band electromechanical vibration converter
    Patent number: 4750208
    Abstract: Audio-band electromechanical vibration converter characterized in that a yoke having a permanent magnet and a magnetic gap formed therein is displaceably housed by a damper in a casing to which a vibration plate is attached; a coil attached to the casing is placed in said magnetic gap; and the casing gives an output of a mechanical vibration synchronized with a low-band audio-signal.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: June 7, 1988
    Assignee: Bodysonic Kabushiki Kaisha
    Inventors: Kyota Yamada, Akira Komatsu
  • Audio-band electro-mechanical vibration converter
    Patent number: 4495638
    Abstract: A device for giving an audio signal to a coil associated with an audio-band electromechanical converter uses a mixer, a first-stage low-pass filter, a limited and a second-stage low pass filter to correct distortion of the wave form of a signal from the limiter.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: January 22, 1985
    Assignee: Body Sonic Kabushiki Kaisha
    Inventors: Kyota Yamada, Akira Komatsu
  • Audio-band electromechanical vibration converter
    Patent number: 4354067
    Abstract: Audio-band electromechanical vibration converter characterized in that a yoke having a magnetic pole and a magnetic gap formed therein is displaceably housed by a damper in a casing to which a vibration plate is attached; a coil attached to the casing is placed in said magnetic gap; and the casing gives an output of a mechanical vibration synchronized with a low-band audio-signal.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: October 12, 1982
    Assignee: Bodysonic Kabushiki Kaisha
    Inventors: Kyota Yamada, Akira Komatsu
  • Sound reproduction system and device
    Patent number: 4064376
    Abstract: A sound frequency reproduction system and apparatus has a chair for a human. A transducer is vibrated by a sound signal of appropriate frequency. The vibrating shaft of the transducer is directly fitted to the framework of the chair. The sound signal is provided to an acoustic device, including a speaker, located near the chair.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: December 20, 1977
    Assignee: Bodysonic Kabushiki Kaisha
    Inventor: Kyota Yamada