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Hiroshi Matsunaga
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Hamamatsu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Pitch cone angle measurement method and pitch cone angle measuremen...
Patent number
10,495,435
Issue date
Dec 3, 2019
NTN Corporation
Hiroshi Matsunaga
G01 - MEASURING TESTING
Information
Patent Grant
Keyboard musical instrument with keyboard range indicator
Patent number
5,907,115
Issue date
May 25, 1999
Kawai Musical Instruments Manufacturing Co., Ltd.
Hiroshi Matsunaga
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Piano provided with a mechanism for controlling string striking mov...
Patent number
5,524,519
Issue date
Jun 11, 1996
Kabushiki Kaisha Kawai Gakki Seisakusho
Hiroshi Matsunaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Play data recording apparatus for keyed musical instrument
Patent number
5,432,295
Issue date
Jul 11, 1995
Kabushiki Kaisha Kawai Gakki Seisakusho
Hiroshi Matsunaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Self playing piano and an apparatus for automatic playing of a piano
Patent number
5,335,574
Issue date
Aug 9, 1994
Kabushiki Kaisha Kawai Gakki Seisakusho
Hiroshi Matsunaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Sensor for an automatic piano player apparatus
Patent number
5,012,715
Issue date
May 7, 1991
Kabushiki Kaisha Kawai Gakki Seisakusho
Hiroshi Matsunaga
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
PITCH CONE ANGLE MEASUREMENT METHOD AND PITCH CONE ANGLE MEASUREMEN...
Publication number
20180180397
Publication date
Jun 28, 2018
Hiroshi MATSUNAGA
G01 - MEASURING TESTING