Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6785185 | Semiconductor memory device, information apparatus, and method for determining access period for semiconductor memory device | Ken Sumitani | 2004-08-31 |
| 6751153 | Non-volatile semiconductor memory device and information apparatus | Yasumichi Mori, Ken Sumitani, Yuji Tanaka | 2004-06-15 |
| 6646947 | Data transfer control device, semiconductor memory device and electronic information apparatus | Ken Sumitani, Yasumichi Mori | 2003-11-11 |
| 6549475 | Semiconductor memory device and information device | Ken Nakazawa, Ken Sumitani, Yasumichi Mori | 2003-04-15 |
| 6522581 | Semiconductor storage device | Hidekazu Takata, Ken Sumitani | 2003-02-18 |
| 6292392 | Non-volatile semiconductor device | — | 2001-09-18 |
| 6157242 | Charge pump for operation at a wide range of power supply voltages | — | 2000-12-05 |