Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334022 | Auditory playing device | Shiro Yasuda | 1994-08-02 |
| 4903130 | Broadcast satellite receiver | Osamu Yamakami | 1990-02-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334022 | Auditory playing device | Shiro Yasuda | 1994-08-02 |
| 4903130 | Broadcast satellite receiver | Osamu Yamakami | 1990-02-20 |