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Kei Kunisada
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Hamamatsu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic keyboard musical instrument
Patent number
7,432,428
Issue date
Oct 7, 2008
Yamaha Corporation
Kei Kunisada
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Keyboard instrument
Patent number
7,078,611
Issue date
Jul 18, 2006
Yamaha Corporation
Ryuichi Izumi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Musical tone generation structure of electronic musical instrument
Patent number
6,392,136
Issue date
May 21, 2002
Yamaha Corporation
Masao Kondo
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
Electronic keyboard musical instrument
Publication number
20070017353
Publication date
Jan 25, 2007
Yamaha Corporation
Kei Kunisada
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Keyboard instrument
Publication number
20050150368
Publication date
Jul 14, 2005
Yamaha Corporation
Ryuichi Izumi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Musical tone generation structure of electronic musical instrument
Publication number
20010052284
Publication date
Dec 20, 2001
Masao Kondo
G10 - MUSICAL INSTRUMENTS ACOUSTICS