Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345329 | Polarization-independent optical isolator | Kazushi Shirai, Toshihiko Takano, Mitsuzo Arii | 1994-09-06 |
| 5278853 | Optical isolator | Kazushi Shirai, Makoto Sumitani, Mitsuzo Arii | 1994-01-11 |