Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7940860 | Communication system | Michihiko Goto, Hidetoshi Kawamura | 2011-05-10 |
| 7415111 | Optical network unit and optical line terminal | Takashi Monzawa, Kenji Miura, Tamotsu Matsuo, Hideki Shiono, Yoshimi Toyoda +9 more | 2008-08-19 |
| 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, Katsuhiko Hirashima +3 more | 2004-04-27 |
| 6611928 | Homo-code continuity proof testing device | Kazuhiro Uchida, Kazuya Ryu, Katsuhiko Hirashima, Toshinori Koyanagi, Setsuo Abiru | 2003-08-26 |