RYUTARO NAKAGAWA

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic transducer
- Patent number D971176
- Issue date Nov 29, 2022
- Sony Corporation
- Ryutaro Nakagawa
- D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

Information Patent Application
EARPHONE
- Publication number 20220312101
- Publication date Sep 29, 2022
- SONY GROUP CORPORATION
- RYUTARO NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE