Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369423 | Semiconductor device with a thin gate stack having a plurality of insulating layers | Tokuhisa Ohiwa, Jeffrey P. Gambino, Katsuya Okumura | 2002-04-09 |
| 6091117 | Field effect transistor having elevated source and drain regions and methods of manufacturing the same | Yoshitaka Tsunashima, Katsuya Okumura | 2000-07-18 |
| 5970352 | Field effect transistor having elevated source and drain regions and methods for manufacturing the same | Yoshitaka Tsunashima, Katsuya Okumura | 1999-10-19 |
| 5888876 | Deep trench filling method using silicon film deposition and silicon migration | Yoshitaka Tsunashima, Katsuya Okumura | 1999-03-30 |
| 5451809 | Smooth surface doped silicon film formation | Yoshitaka Tsunashima | 1995-09-19 |