Patents by Inventor Koji Nishibe

Koji Nishibe 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).

  • Apparatus for producing a vocal sound signal in an electronic musical instrument
    Patent number: 4236434
    Abstract: An electronic musical instrument for producing a vocal sound signal comprising a musical tone signal generator connected to a passing circuit for passing a musical tone signal under the selection of a key. A formant filter is connected in the passing circuit and includes a plurality of filters connected in parallel to one another. A control system is operative to produce two output signals in the passing circuit after the formant filter in sequence upon operation of the key, one of the output signals being a vowel sound and the other a consonant sound.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: December 2, 1980
    Assignee: Kabushiki Kaisha Kawai Sakki Susakusho
    Inventor: Koji Nishibe