Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12108202 | Speaker unit and earphone | Koichi Muramatsu | 2024-10-01 |
| 8276171 | Pickup frame and optical pickup device | Toshiaki Takasu, Hiroaki Suzuki | 2012-09-25 |
| 5999501 | Objective lens actuator and method for producing the same | Hironori Tomita, Takuya Wada, Tohru Nakamura | 1999-12-07 |