Patents by Inventor Katsutoshi Tairadate

Katsutoshi Tairadate 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).

  • Key mechanism for musical wind instruments
    Patent number: 4250791
    Abstract: A key mechanism for musical wind instruments such as a saxophone is comprised of a plurality of, generally four sets of, collectively arranged flat finger pieces at least one of which is provided with a sinking incline in a rim portion adjacent to neighboring finger piece or pieces in order to enable smooth shifting of the little finger point on the key mechanism. More preferable, at least one of the finger pieces is provided with a rising incline in a rim portion remote from neighboring finger piece or pieces in order to block excessive finger point shifting.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: February 17, 1981
    Assignee: Nippon Gakki Seizo Kabushiki Kaisha
    Inventor: Katsutoshi Tairadate