Mitsuharu Chiba

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tuning device and tuning method
- Patent number 7,288,709
- Issue date Oct 30, 2007
- Seiko Instruments Inc.
- Mitsuharu Chiba
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Instrument for tuning musical instruments
- Patent number 4,899,636
- Issue date Feb 13, 1990
- Seiko Instruments Inc.
- Mitsuharu Chiba
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL