Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846542 | Optical switch matrix | Hideaki Okayama, Nobuo Kobayashi, Issei Asabayashi, Kiyoshi Nagai, Ryoko Shibuya | 1989-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846542 | Optical switch matrix | Hideaki Okayama, Nobuo Kobayashi, Issei Asabayashi, Kiyoshi Nagai, Ryoko Shibuya | 1989-07-11 |