Issued Patents 2002
Showing 1–2 of 2 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 |
| 6413809 | Method of manufacturing a non-volatile memory having an element isolation insulation film embedded in the trench | Takuya Nakamura, Naoki Koido, Kazuhito Narita, Seiichi Aritome, Fumitaka Arai | 2002-07-02 |