Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11384505 | Work vehicle | — | 2022-07-12 |
| 8306066 | Transmission device | Masatoshi Shibasaki, Toshiyuki Atsumi, Yoshio Nogi | 2012-11-06 |
| 8149868 | Interface board and optical transmission equipment | Hidemasa Narita, Masatoshi Shibasaki, Toshiyuki Atsumi, Yukihisa Tamura | 2012-04-03 |
| 7769257 | Optical transmission system and signal speed converting apparatus | Nobuhiko Kikuchi, Naohiro Sakakida, Hiroyuki Nakano | 2010-08-03 |
| 6205562 | Path switching method, path switching apparatus and nodes of UPSR | Yoshihiro Ashi, Atsushi Kubotera | 2001-03-20 |
| 6038678 | Path switching method, path switching apparatus and nodes of UPSR | Yoshihiro Ashi, Atsushi Kubotera | 2000-03-14 |
| 5835845 | Communication system of multi-channel access | Atsuyoshi Niki, Ichiro Maeda | 1998-11-10 |