Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10171259 | Network system and relay device | Toshihiko Murakami, Tatsuro Matsumoto | 2019-01-01 |
| 9876706 | Relay system and switching device for a layer 3 network | — | 2018-01-23 |
| 9755854 | Tag conversion apparatus | Kazuhiro Maeda, Osamu Takada, Jyunji KINOSHITA, Shingo Sugawara, Toshihiko Murakami | 2017-09-05 |
| 9363094 | Relay system and switching device | — | 2016-06-07 |
| 8630166 | Ring network and network relay device | Koichiro Seto | 2014-01-14 |