Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8391718 | Passive optical communication network system extendable with codec modules | — | 2013-03-05 |
| 8306426 | Optical code division multiplexing communication system and method for correcting failure of the same | — | 2012-11-06 |
| 7773881 | Optical division multiplexing transmission and reception method and optical division multiplexing transmission and reception device | Takeshi Kamijoh | 2010-08-10 |
| 7702240 | Optical multiplex communication system and delay quantity adjustment method | — | 2010-04-20 |
| 7680415 | Optical code division multiplexing transmission and reception method and optical code division multiplexing transceiver | Akihiko Nishiki, Hideyuki Iwamura, Takashi Ushikubo | 2010-03-16 |
| 7660536 | Optical modulating circuit and optical modulating method | — | 2010-02-09 |
| 7620324 | Optical division multiplexing transmission and reception method and optical division multiplexing transmission and reception device | Takeshi Kamijoh | 2009-11-17 |
| 7333729 | Optical transmitter, optical receiver and optical transmission system using same | Satoko Kutsuzawa, Saeko Oshiba | 2008-02-19 |
| 7333737 | Optical receiver | Satoko Kutsuzawa | 2008-02-19 |
| 7242976 | Device and method for selecting codes | — | 2007-07-10 |