Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D689448 | Light emitting diode | Tsukasa Doi, Yufeng Weng | 2013-09-10 |
| D689449 | Light emitting diode | Tsukasa Doi, Yufeng Weng | 2013-09-10 |
| 8315527 | Passive optical network system and optical line terminal | — | 2012-11-20 |
| 7372807 | Method and apparatus for multiplex transmission | Masaki Ohira, Masazumi Noguchi, Takashi Mori, Koji Kato | 2008-05-13 |
| 6721268 | Method and apparatus for multiplex transmission | Masaki Ohira, Masazumi Noguchi, Takashi Mori, Koji Kato | 2004-04-13 |
| 6614754 | Bi-directional line switched ring network system | Keiji Usuba, Masatoshi Takahashi, Seigo OBAYASHI, Takashi Mori | 2003-09-02 |