Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5121210 | Video composing system using special effect apparatus | — | 1992-06-09 |
| 4985756 | Special effect system for video signal | Shigehisa Kawabe | 1991-01-15 |
| 4774507 | Special video effect system | Kazuo Kashigi | 1988-09-27 |