Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696702 | Silicon carbide semiconductor switching device | Katsumi Satoh, Youichi Ishimura | 2004-02-24 |
| 6683348 | Insulated gate bipolar semiconductor device transistor with a ladder shaped emitter | Yoshifumi Tomomatsu | 2004-01-27 |