Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886377 | Rotary body of hard material with plastic supporter | Minoru Adachi | 1989-12-12 |
| 4753969 | Diaphragm for electroacoustic transducer | Shinya Mizone, Tamotsu Abe, Minoru Adachi | 1988-06-28 |