Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10419153 | Optical transmitter and optical transmitting method | Masato Nishihara | 2019-09-17 |
| 9509435 | Determination device and determination method | Haruka Shinohara, Takuya Miyashita | 2016-11-29 |
| 9065573 | Digital coherent optical receiver, control method of the same, and transmission apparatus | — | 2015-06-23 |
| 8971724 | Optical transmission apparatus and characteristic compensation method | — | 2015-03-03 |
| 8351800 | Optical receiver and clock generation method | Noriaki Mizuguchi | 2013-01-08 |
| 8306430 | Dispersion compensating apparatus and dispersion compensating method | Akira Miura, Hiroki Ooi | 2012-11-06 |
| 8248689 | Distributed Raman amplifying system, start-up method thereof, and optical device | Masanori Kondoh, Yasushi Sugaya, Togo Fukushi, Miki Onaka | 2012-08-21 |
| 8139285 | Raman amplifying device and control method | Miki Onaka, Togo Fukushi, 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 | Masanori Kondoh, Miki Onaka, Togo Fukushi | 2011-11-08 |
| 8049955 | Optical amplification apparatus, optical communication apparatus, and optical communication method | Miki Onaka, Yasushi Sugaya, Togo Fukushi, Masanori Kondoh, Takashi Hayasaka | 2011-11-01 |
| 8004751 | Wavelength division multiplexing optical transmission system utilizing distributed raman amplification | Miki Onaka, Togo Fukushi, Masanori Kondoh | 2011-08-23 |
| 7805085 | Optical reception apparatus | — | 2010-09-28 |
| 7729619 | Dispersion compensation controlling apparatus and method for searching for amount of dispersion control | Hiroki Ooi | 2010-06-01 |
| 7224899 | Optical transmission system | — | 2007-05-29 |
| 7139117 | Optical transmission apparatus | Eisuke Nakamura, Makoto Murakami | 2006-11-21 |