Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8194461 | Semiconductor memory device having dummy cells in NAND strings applied with an additional program voltage after erasure and prior to data programming | Noboru Shibata | 2012-06-05 |
| 7869280 | Semiconductor memory device realizing a channel voltage control scheme adopting dummy cells with threshold voltage higher than threshold voltage of erased memory cells and method thereof | Noboru Shibata | 2011-01-11 |