KAZUMASA OKAMOTO

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TOKYO, JP

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Patents Grantslast 30 patents

Information Patent Grant
Display device and speaker
- Patent number 11,962,972
- Issue date Apr 16, 2024
- Sony Group Corporation
- Masahiro Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Display Device And Speaker Device
- Publication number 20230039852
- Publication date Feb 9, 2023
- SONY GROUP CORPORATION
- Kazumasa Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISPLAY DEVICE AND SPEAKER
- Publication number 20220078560
- Publication date Mar 10, 2022
- MASAHIRO TAKAHASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE