Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7038951 | Non-volatile semiconductor memory device and erasing control method thereof | Yasuaki Hirano | 2006-05-02 |
| 6912161 | Nonvolatile semiconductor memory device | Yasuaki Hirano, Yasumichi Mori | 2005-06-28 |
| 6831858 | Non-volatile semiconductor memory device and data write control method for the same | Yasuaki Hirano | 2004-12-14 |
| 6549465 | Nonvolatile semiconductor memory well voltage setting circuit without latchup and semiconductor memory device provided with the circuit | Yasuaki Hirano, Yoshihisa Sekiguchi | 2003-04-15 |
| 6185131 | Nonvolatile semiconductor storage device capable of electrically isolating dummy cell array region from memory cell array region | — | 2001-02-06 |
| 6040999 | Semiconductor memory device | Yasuhiro Hotta | 2000-03-21 |