Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691845 | Optical isolator, optical isolator with fiber and method for making the same | Yoichi Kanagawa, Kenjiro Hata, Makoto Sekijima | 1997-11-25 |
| 5640516 | Faraday rotator | Kazuhito Yamasawa, Masaaki Kobayashi | 1997-06-17 |
| 5619367 | Apparatus and method for measuring magnetic fields employing magneto-optic element | Yoshikazu Narumiya, Makoto Nakazawa | 1997-04-08 |