Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864400 | Television synchronization system | Junji Kumada, Tetsuo Mitsuhashi, Fumio Okano, Jun'ichi Ishida, Takashi Oketani | 1989-09-05 |
| 4807040 | Signal processing filter for an image projection device utilizing an oil film | Kenzo Seo, Shinetsu Itoh, Masaru Kanazawa, Kiyotaka Okada | 1989-02-21 |