Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11582557 | Speaker diaphragm, speaker, speaker diaphragm manufacturing method, electronic device, and mobile body apparatus | Tetsuya KOYANAGI, Kazuaki Nishimura, Makoto Kurozawa, Ryouichi Uemoto, Hiroki Sano | 2023-02-14 |