Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9148218 | Optical receiver, optical transmission system, and span-loss monitoring method | — | 2015-09-29 |
| 8260152 | Optical signal detection method, and light receiving apparatus using the same | Tsukasa Takahashi | 2012-09-04 |
| 8248689 | Distributed Raman amplifying system, start-up method thereof, and optical device | Masanori Kondoh, Yasushi Sugaya, Miki Onaka, Kiyotoshi Noheji | 2012-08-21 |
| 8139285 | Raman amplifying device and control method | Miki Onaka, Kiyotoshi Noheji, Masanori Kondoh | 2012-03-20 |
| 8054538 | Raman amplification apparatus and distributed raman amplification system as well as starting up method for distributed raman amplification system | Kiyotoshi Noheji, Masanori Kondoh, Miki Onaka | 2011-11-08 |
| 8049955 | Optical amplification apparatus, optical communication apparatus, and optical communication method | Miki Onaka, Yasushi Sugaya, Masanori Kondoh, Kiyotoshi Noheji, Takashi Hayasaka | 2011-11-01 |
| 8004751 | Wavelength division multiplexing optical transmission system utilizing distributed raman amplification | Miki Onaka, Kiyotoshi Noheji, Masanori Kondoh | 2011-08-23 |