Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689354 | Optical space communication apparatus | — | 1997-11-18 |
| 5680241 | Optical space communication | Tetsuo Sakanaka | 1997-10-21 |
| 5627669 | Optical transmitter-receiver | Tetsuo Sakanaka, Yasusaburo Degura, Takehide Hamuro | 1997-05-06 |