Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500710 | Method of manufacturing a nonvolatile semiconductor memory device | — | 2002-12-31 |
| 6492528 | 1,3-dialkyl-2-imidazolidinones and a manufacturing process therefor | Katsuhiko Matsuba, Takazou Katou, Yoshihiro Yamamoto | 2002-12-10 |
| 6391721 | Non-volatile semiconductor memory device having vertical transistors and fabrication method therefor | — | 2002-05-21 |
| 6368916 | Method for fabricating nonvolatile semiconductor memory device | — | 2002-04-09 |
| 6355525 | Method of producing non-volatile semiconductor memory device having a floating gate with protruding conductive side-wall portions | — | 2002-03-12 |