Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345329 | Polarization-independent optical isolator | Kazushi Shirai, Toshihiko Takano, Norio Takeda | 1994-09-06 |
| 5343545 | Interconnectable multi-terminal star coupler | Takeshi Ota, Masukazu Hirata, Yasunari Kawabata | 1994-08-30 |
| 5278853 | Optical isolator | Kazushi Shirai, Makoto Sumitani, Norio Takeda | 1994-01-11 |