Tomoyuki Kumagai

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Hamamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Data sending apparatus and data receiving apparatus communicating d...
- Patent number 6,232,541
- Issue date May 15, 2001
- Yamaha Corporation
- Tomoyuki Kumagai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Musical tone synthesizing apparatus, musical tone synthesizing meth...
- Patent number 6,103,965
- Issue date Aug 15, 2000
- Yamaha Corporation
- Tomoyuki Kumagai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Musical tone generating apparatus, musical tone generating method a...
- Patent number 5,864,081
- Issue date Jan 26, 1999
- Yamaha Corporation
- Hiroyuki Iwase
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Automatic performance device
- Patent number 5,623,112
- Issue date Apr 22, 1997
- Yamaha Corporation
- Yoshihisa Ito
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Instrument having multiple data storing tracks for playing back mus...
- Patent number 5,340,939
- Issue date Aug 23, 1994
- Yamaha Corporation
- Tomoyuki Kumagai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Instrument for recording and playing back musical playing data
- Patent number 5,274,192
- Issue date Dec 28, 1993
- Yamaha Corporation
- Tomoyuki Kumagai
- G10 - MUSICAL INSTRUMENTS ACOUSTICS