Yuichi Murai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of managing information files in a communication karaoke app...
- Patent number 5,890,910
- Issue date Apr 6, 1999
- Yamaha Corporation
- Kanehisa Tsurumi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method of operating a karaoke network system with system program di...
- Patent number 5,833,469
- Issue date Nov 10, 1998
- Yamaha Corporation
- Emi Ito
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Karaoke system including host apparatus that downloads information...
- Patent number 5,824,934
- Issue date Oct 20, 1998
- Yamaha Corporation
- Kanehisa Tsurumi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS