Issued Patents 2002
Showing 1–5 of 5 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 |
| 6424588 | Semiconductor memory device capable of realizing a chip with high operation reliability and high yield | Hiroshi Nakamura, Ken Takeuchi, Hideko Oodaira, Kenichi Imamiya, Kazuhiro Shimizu +1 more | 2002-07-23 |
| 6413809 | Method of manufacturing a non-volatile memory having an element isolation insulation film embedded in the trench | Takuya Nakamura, Naoki Koido, Hirohisa Iizuka, Seiichi Aritome, Fumitaka Arai | 2002-07-02 |
| 6342715 | Nonvolatile semiconductor memory device | Kazuhiro Shimizu, Seiichi Aritome, Toshiharu Watanabe | 2002-01-29 |
| 6340611 | Nonvolatile semiconductor memory device | Kazuhiro Shimizu, Seiichi Aritome, Toshiharu Watanabe | 2002-01-22 |