Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880289 | Two-way optical transmission system | Katsuyuki Imoto, Akihiko Takase, Atsushi Takai, Satoshi Aoki, Shoji Yamada | 1989-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880289 | Two-way optical transmission system | Katsuyuki Imoto, Akihiko Takase, Atsushi Takai, Satoshi Aoki, Shoji Yamada | 1989-11-14 |