Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9515848 | Transmission device, transmission system, and transmission method | Kanji Naito, Koji Takeguchi, Mineshi Nakashima | 2016-12-06 |
| 9197347 | Optical transmission system and noise suppression method | Mineshi Nakashima, Yasuko Nozu, Katsuhiro Shirai, Koji Takeguchi | 2015-11-24 |
| 9154373 | Failure protection method and node apparatus | Kanji Naito, Toru Katagiri, Koji Takeguchi, Mineshi Nakashima | 2015-10-06 |
| 9042726 | Optical transport network system, optical-signal transmission path selecting method, and optical transmission device | Yasuko Nozu | 2015-05-26 |
| 7724731 | Transmission network system | Kenji Kurashima, Zhenhua Wang | 2010-05-25 |