Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580108 | Insulated gate bipolar transistor decreasing the gate resistance | Tomoyuki Utsumi, Shoichi Ozeki | 2003-06-17 |
| 6520206 | Bi-directional pilot type electromagnetic valves | Akihisa Hotta, Takeshi Yamamoto | 2003-02-18 |