Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D934840 | Earphone | Takashi Nara, Jin Kuramoto | 2021-11-02 |
| D934841 | Earphone | Takashi Nara, Jin Kuramoto | 2021-11-02 |
| D924850 | Earphone | Takashi Nara, Jin Kuramoto | 2021-07-13 |
| 10934316 | Process for producing silyl phosphine compound and silyl phosphine compound | Ken Tamura | 2021-03-02 |