Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670871 | Polar relay | Hirofumi Saso | 2003-12-30 |
| 6560221 | Communication path control device, communication path control method, and communication path control unit | Kazuhiro Hara, Ichiro Kubota, Yasuaki Yamagishi, Akihiro Uetake | 2003-05-06 |