Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283846 | Optical isolator, optical circuit, and rare-earth-doped fiber optical amplifier | Takashi Toyonaka, Shinji Tsuji, Makoto Haneda | 1994-02-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283846 | Optical isolator, optical circuit, and rare-earth-doped fiber optical amplifier | Takashi Toyonaka, Shinji Tsuji, Makoto Haneda | 1994-02-01 |