Tomohisa Ishikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic musical instrument having automatic sound signal generat...
- Patent number 4,972,755
- Issue date Nov 27, 1990
- Casio Computer Co., Ltd.
- Yoichiro Tajima
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Electronic musical instrument having rhythm-play function based on...
- Patent number 4,757,736
- Issue date Jul 19, 1988
- Casio Computer Co., Ltd.
- Yoichiro Tajima
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Distorted waveform signal generator
- Patent number 4,656,428
- Issue date Apr 7, 1987
- Casio Computer Co., Ltd.
- Tomohisa Ishikawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Electronic keyboard musical instrument capable of inputting rhythmi...
- Patent number 4,481,853
- Issue date Nov 13, 1984
- Casio Computer Co., Ltd.
- Tomohisa Ishikawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Electronic musical instrument
- Patent number 4,437,378
- Issue date Mar 20, 1984
- Casio Computer Co., Ltd.
- Hideaki Ishida
- G10 - MUSICAL INSTRUMENTS ACOUSTICS