Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7609728 | Optical transmission switching device | Ryuuichi Ikematsu, Shigekazu Harada, Hajima Ishikawa, Takahide Sugita, Hidetoshi Shinoda | 2009-10-27 |
| 7372804 | Multiplex communication system and method | Ryuuichi Ikematsu, Shigekazu Harada, Hajime Ishikawa, Takahide Sugita, Hidetoshi Shinoda | 2008-05-13 |
| 7130903 | Multi-layer class identifying communication apparatus with priority control | Michio Masuda, Kenshin Yamada | 2006-10-31 |
| 6754215 | Packet scheduling device | Motoo Nishihara, Michio Masuda | 2004-06-22 |