Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689359 | Polarization independent optical isolator | Noboru Kurata, Masaaki Tojo | 1997-11-18 |
| 5689360 | Polarization independent optical isolator | Noboru Kurata, Masaaki Tojo | 1997-11-18 |
| 5574595 | Optical isolator | Noboru Kurata, Masaaki Tojo | 1996-11-12 |
| 5499132 | Optical passive components | Masaaki Tojo, Noboru Kurata | 1996-03-12 |
| 5493440 | Optical isolator and optical fiber amplifier | Masaaki Tojo, Noboru Kurata, Masanori Iida | 1996-02-20 |
| 5355249 | Optical passive components | Masaaki Tojo, Noboru Kurata | 1994-10-11 |
| 5299056 | Optical passive component assembly | Noboru Kurata, Masaaki Tojo | 1994-03-29 |