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Shinji Hamanaga
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Shizuoka, JP
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last 30 patents
Information
Patent Grant
Rotary valve of brass instrument
Patent number
6,018,114
Issue date
Jan 25, 2000
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Mute attached to brass instrument without change of pitch of sound
Patent number
5,973,246
Issue date
Oct 26, 1999
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Sound arrester for wind instrument
Patent number
D386197
Issue date
Nov 11, 1997
Yamaha Corporation
Shinji Hamanaga
D17 - Musical instruments
Information
Patent Grant
Sound arrester for wind instrument
Patent number
D386198
Issue date
Nov 11, 1997
Yamaha Corporation
Shinji Hamanaga
D17 - Musical instruments
Information
Patent Grant
Sound arrester for wind instrument
Patent number
D381037
Issue date
Jul 15, 1997
Yamaha Corporation
Shinji Hamanaga
D17 - Musical instruments
Information
Patent Grant
Mute attached to brass instrument without change of pitch of sound
Patent number
5,569,864
Issue date
Oct 29, 1996
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Wind instrument fabricated from metallic tubular parts with inwardl...
Patent number
5,503,055
Issue date
Apr 2, 1996
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Horn with intermediate tube network enlarged in inner diameter
Patent number
5,367,938
Issue date
Nov 29, 1994
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Wind instrument with link mechanism for transmitting lever action t...
Patent number
5,237,902
Issue date
Aug 24, 1993
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Structure of rotary valve assembly used in wind instrument
Patent number
4,970,932
Issue date
Nov 20, 1990
Yamaha Corporation
Shinji Hamanaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS