Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492690 | Semiconductor device having control electrodes with different impurity concentrations | Yoshinori Okumura, Shigenobu Maeda, Shigeto Maegawa | 2002-12-10 |
| 6475844 | Field effect transistor and method of manufacturing same | Hidekazu Oda, Tomohiro Yamashita | 2002-11-05 |
| 6469347 | Buried-channel semiconductor device, and manufacturing method thereof | Hidekazu Oda, Tomohiro Yamashita | 2002-10-22 |
| 6461934 | Method of manufacturing semiconductor device having trench type element isolation regions | Yukio Nishida, Masashi Kitazawa | 2002-10-08 |
| 6380036 | Semiconductor device and method of manufacturing the same | Hidekazu Oda, Takehisa Yamaguchi | 2002-04-30 |