Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1059343 | Headshell | — | 2025-01-28 |
| D1055905 | Pick-up cartridge | Yutaro Kumagai | 2024-12-31 |
| 11164597 | Head shell | — | 2021-11-02 |
| 11017800 | Head shell | — | 2021-05-25 |
| D876429 | Pick-up cartridge | Yosuke Takubo, Daichi Yamakawa, Shohei Araki | 2020-02-25 |