Yosuke KUMAGAWA

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Auditory sensitivity adjustment device
- Patent number 10,383,770
- Issue date Aug 20, 2019
- Yosuke Kumagawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Auditory sensitivity adjustment device
- Patent number 9,717,632
- Issue date Aug 1, 2017
- Yosuke Kumagawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Auditory sensitivity adjustment device
- Patent number 9,681,989
- Issue date Jun 20, 2017
- Yosuke Kumagawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
AUDITORY SENSITIVITY ADJUSTMENT DEVICE
- Publication number 20170246037
- Publication date Aug 31, 2017
- Yosuke KUMAGAWA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
AUDITORY SENSITIVITY ADJUSTMENT DEVICE
- Publication number 20160262939
- Publication date Sep 15, 2016
- Yosuke KUMAGAWA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS