| 7415111 |
Optical network unit and optical line terminal |
Takashi Monzawa, Kenji Miura, Tamotsu Matsuo, Hideki Shiono, Yoshimi Toyoda +9 more |
2008-08-19 |
| 7177326 |
Communication system |
Masamichi Kasa, Toshinori Koyanagi, Toshiyuki Sakai, Kazuhiro Uchida |
2007-02-13 |
| 6848053 |
Optical network unit and optical line terminal |
Takashi Monzawa, Kenji Miura, Tamotsu Matsuo, Hideki Shiono, Yoshimi Toyoda +9 more |
2005-01-25 |
| 6728248 |
Optical line terminal |
Kazuhiro Uchida, Kazuya Ryu, Kanna Okamura, Masashi Shibata, Shinichi Fujiyoshi +3 more |
2004-04-27 |
| 6650841 |
Optical subscriber line terminal unit and a state transition control method |
Tamotsu Matsuo, Kenji Miura, Takashi Monzawa, Yoshimi Toyoda, Jun Asato +1 more |
2003-11-18 |
| 6647210 |
Delay adjustment unit and method, optical network unit, and communication system |
Yoshimi Toyoda, Takashi Monzawa, Tamotsu Matsuo, Kenji Miura, Jun Asato +2 more |
2003-11-11 |
| 6611928 |
Homo-code continuity proof testing device |
Shinichi Fujiyoshi, Kazuhiro Uchida, Kazuya Ryu, Katsuhiko Hirashima, Toshinori Koyanagi |
2003-08-26 |
