Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501138 | Semiconductor memory device and method for manufacturing the same | — | 2002-12-31 |
| 6468850 | Method of manufacturing a semiconductor memory device | Kunio Watanabe, Takashi Kumagai | 2002-10-22 |