Ryuta SHIGEMATSU

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 11,277,684
- Issue date Mar 15, 2022
- Onkyo Corporation
- Norimasa Kitagawa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

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- Publication number 20200236462
- Publication date Jul 23, 2020
- Onkyo Corporation
- Norimasa KITAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE