Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462373 | Nonvolatile semiconductor memory device having tapered portion on side wall of charge accumulation layer | Kazuhiro Shimizu, Riichiro Shirota, Naoki Koido, Seiichi Aritome, Hiroaki Tsunoda +3 more | 2002-10-08 |