Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498761 | Power supply circuit and semiconductor memory device having the same | Shigeru Atsumi | 2002-12-24 |
| 6480426 | Semiconductor integrated circuit device | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Tadayuki Taura, Hidetoshi Saito | 2002-11-12 |
| 6433619 | Pump circuit boosting a supply voltage | Hironobu Akita, Masaharu Wada, Kenji Tsuchida | 2002-08-13 |
| 6385087 | Nonvolatile semiconductor memory device | Shigeru Atsumi | 2002-05-07 |
| 6356499 | Power supply circuit and semiconductor memory device having the same | Shigeru Atsumi | 2002-03-12 |