Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6392784 | Faraday rotator | Nobuhiro Fukushima, Hirohiko Sonada | 2002-05-21 |
| 6384957 | Variable optical attenuator utilizing Faraday effect | Nobuhiro Fukushima, Hirohiko Sonoda | 2002-05-07 |