Patents by Inventor Yuuya MAEBASHI

Yuuya MAEBASHI 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).

  • Alarm sound generating apparatus
    Patent number: 10827256
    Abstract: An alarm sound generating apparatus includes a spiral pipe extending from a sound wave inlet to a sound wave outlet, and a cover including a reflecting wall configured to reflect a sound wave released from the sound wave outlet. The reflecting wall is distanced from and faces to the sound wave outlet. A distance between the sound wave outlet and the reflecting wall falls within ±10% of an odd multiple of one-fourth of a wavelength calculated from a fundamental frequency of the alarm sound or a multiple harmonic thereof.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 3, 2020
    Assignee: HAMANAKODENSO CO., LTD.
    Inventors: Tatsuya Kawai, Yuuya Maebashi
  • ALARM SOUND GENERATING APPARATUS
    Publication number: 20200236460
    Abstract: An alarm sound generating apparatus includes a spiral pipe extending from a sound wave inlet to a sound wave outlet, and a cover including a reflecting wall configured to reflect a sound wave released from the sound wave outlet. The reflecting wall is distanced from and faces to the sound wave outlet. A distance between the sound wave outlet and the reflecting wall falls within ±10% of an odd multiple of one-fourth of a wavelength calculated from a fundamental frequency of the alarm sound or a multiple harmonic thereof.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Inventors: Tatsuya KAWAI, Yuuya MAEBASHI