Shoko SAKAI

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Soundproof material
- Patent number 11,929,054
- Issue date Mar 12, 2024
- MAXELL, LTD.
- Norikazu Matsumoto
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
CONTROL METHOD OF SOUND ABSORPTION CHARACTERISTICS OF SOUNDPROOF MA...
- Publication number 20220076653
- Publication date Mar 10, 2022
- MAXELL HOLDINGS, LTD.
- Norikazu MATSUMOTO
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
SOUNDPROOF MATERIAL
- Publication number 20210272545
- Publication date Sep 2, 2021
- MAXELL HOLDINGS, LTD.
- Norikazu MATSUMOTO
- G10 - MUSICAL INSTRUMENTS ACOUSTICS