Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8824894 | Passive optical network system | Masahiko Mizutani | 2014-09-02 |
| 8391715 | Passive optical network system | Masahiko Mizutani, Shinya Fujioka | 2013-03-05 |
| 8184975 | Passive optical network system and optical line terminator | Tohru Kazawa, Takeshi Kiyose, Ryosuke Nishino | 2012-05-22 |
| 8145055 | Passive optical network system, optical line terminator and optical network unit | Masahiko Mizutani, Tohru Kazawa | 2012-03-27 |
| 8139950 | Passive optical network system, optical line terminator and, communication method of passive optical network system | Tohru Kazawa, Yusuke Yajima, Takeshi Kiyose, Masahiko Mizutani | 2012-03-20 |