Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884279 | Optical transmission apparatus | — | 1989-11-28 |
| 4756607 | Optical isolator device having two cascaded isolator elements with different light beam rotation angles | Nobutaka Watanabe | 1988-07-12 |
| 4698821 | Integrated light emitting/receiving amplifier element | Tomoji Terakado | 1987-10-06 |