Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4937570 | Route guidance display device | Fumio Matsukawa, Yoshisada Mizutani | 1990-06-26 |
| 4579424 | Liquid crystal display device having interdigitated common electrodes and color filters | Fumio Matsukawa | 1986-04-01 |
| 4518959 | Electronic analog display device | Fumio Ueda, Yoshiaki Tsuboi, Kenji Horikiri, Hiroaki Ideno | 1985-05-21 |