Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669166 | Electromagnetic valve | Shigeiku Enomoto, Yukihiro Shinohara, Michihiro Oshima | 2003-12-30 |
| 6559996 | Optical transmission system | Kazushige Yonenaga, Shoichirou Kuwahara | 2003-05-06 |