Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701018 | Semiconductor device having parallel connection of an insulated gate bipolar transistor and a diode | Koumei Hanaoka, Mutsuhiro Mori | 1997-12-23 |
| 5631494 | Power semiconductor device with low on-state voltage | Yoshitaka Sugawara | 1997-05-20 |