Patents by Inventor Masako Fukunaka

Masako Fukunaka 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).

  • Sound pickup device for percussion instrument
    Patent number: 7256342
    Abstract: A sound pickup device, which is arranged in proximity to a percussion instrument (e.g., a bass drum), comprises a diaphragm stretched under tension over an opening of a shell having a cylindrical shape, and an electroacoustic transducer arranged inside of the shell. The electroacoustic transducer comprises a magnetic transducer or a speaker unit. Herein, the percussion instrument is played to produce the low-pitch sound, which is transmitted to the diaphragm to vibrate so that the electroacoustic transducer is activated to convert the low-pitch sound into an electric signal, based on which the low-pitch sound is reproduced by a sound system with a high fidelity to the original sound.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: August 14, 2007
    Assignee: Yamaha Corporation
    Inventors: Takashi Hagiwara, Kengo Oyama, Masako Fukunaka
  • Sound pickup device for percussion instrument
    Publication number: 20040211310
    Abstract: A sound pickup device, which is arranged in proximity to a percussion instrument (e.g., a bass drum), comprises a diaphragm stretched under tension over an opening of a shell having a cylindrical shape, and an electroacoustic transducer arranged inside of the shell. The electroacoustic transducer comprises a magnetic transducer or a speaker unit. Herein, the percussion instrument is played to produce the low-pitch sound, which is transmitted to the diaphragm to vibrate so that the electroacoustic transducer is activated to convert the low-pitch sound into an electric signal, based on which the low-pitch sound is reproduced by a sound system with a high fidelity to the original sound.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 28, 2004
    Inventors: Takashi Hagiwara, Kengo Oyama, Masako Fukunaka