Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9515763 | Digital coherent receiver and receiving method of optical signal | Takeshi Hoshida | 2016-12-06 |
| 9287992 | Wavelength division multiplexing transmission device | Takehiro Fujita | 2016-03-15 |
| 8923694 | Optical receiving device | Takehiro Fujita, Yasushi Sugaya | 2014-12-30 |
| 8891972 | Optical receiving apparatus and optical transmission system | — | 2014-11-18 |
| 7890000 | Optical receiving apparatus | — | 2011-02-15 |
| 7865082 | Optical receiver and controlling method thereof, and optical transmission system | Takeshi Ono | 2011-01-04 |
| 7817925 | High-speed dispersion compensation control apparatus | Kazuhiro Kunimatsu, Takeshi Ono, Katsumi Fukumitsu, Masakazu Ozaki | 2010-10-19 |
| 7720384 | Wavelength division multiplexing apparatus | Kazuhiro Kunimatsu, Takeshi Ono | 2010-05-18 |