Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4702940 | Method of producing filter for air cleaner | Toshiaki Nakayama, Tokio Kohama, Isamu Okada | 1987-10-27 |
| 4661842 | Luminance/chrominance separator | Masafumi Ishige, Yoshitaka Kanemoto, Ichitaro Sato | 1987-04-28 |