Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880289 | Two-way optical transmission system | Katsuyuki Imoto, Akihiko Takase, Atsushi Takai, Satoshi Aoki, Tsutomu Yoshiya | 1989-11-14 |
| 4854516 | Traverse drum | — | 1989-08-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880289 | Two-way optical transmission system | Katsuyuki Imoto, Akihiko Takase, Atsushi Takai, Satoshi Aoki, Tsutomu Yoshiya | 1989-11-14 |
| 4854516 | Traverse drum | — | 1989-08-08 |