Yasuyuki Semba

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wooden bars arranged for percussion instruments
- Patent number 6,838,604
- Issue date Jan 4, 2005
- Yamaha Corporation
- Hiroyasu Abe
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Celesta promptly responsive to high speed keying-in
- Patent number 5,235,892
- Issue date Aug 17, 1993
- Yamaha Corporation
- Norishige Terada
- G10 - MUSICAL INSTRUMENTS ACOUSTICS