Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835987 | Non-volatile semiconductor memory device in which selection gate transistors and memory cells have different structures | — | 2004-12-28 |
| 6816411 | Non-volatile semiconductor storage device composed of NAND type EEPROM and deletion verification method in non-volatile semiconductor storage device | Fumitaka Arai, Yasuhiko Matsunaga | 2004-11-09 |
| 6703658 | Non-volatile semiconductor memory device and its manufacturing method | Kazuhiro Shimizu, Seiichi Aritome | 2004-03-09 |