Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701821 | Screen cleaning apparatus and screen cleaning method | Koichi Asai, Takeyoshi Isogai, Manabu Mizuno | 1997-12-30 |
| 5656790 | Musical sound system including a main unit for producing musical sounds and a control unit for controlling the main unit | — | 1997-08-12 |