Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10129899 | Network apparatus | Kazutoshi Kariya | 2018-11-13 |
| 9467306 | Switching device and relay system | — | 2016-10-11 |
| 9391835 | Network switch | Chikara Sawaguchi | 2016-07-12 |
| 8310917 | Switching hub and ring network | Koichiro Seto | 2012-11-13 |
| 8270412 | Network relay device and ring network | — | 2012-09-18 |
| 7978286 | Illumination unit and liquid crystal display device | Makoto Kono, Hiroshi Nagahama, Jihei Kubo | 2011-07-12 |
| 7733438 | Liquid crystal display device | Hiroshi Nagahama | 2010-06-08 |