Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11128956 | Edge of diaphragm and speaker unit | Nobukazu Suzuki | 2021-09-21 |
| 10993018 | Speaker apparatus | Yohei Fukuma, Nobukazu Suzuki, Kazuhiro Matsutani, Yoshio Ohashi, Yasuo Kawabata | 2021-04-27 |
| 10967235 | Bat system with performance limiting structure and methods of making same | Yohei Yamashita, David T. Llewellyn, Thu Nguyen, Chi-Hung Lee, Renqin Zhang | 2021-04-06 |