Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6816411 | Non-volatile semiconductor storage device composed of NAND type EEPROM and deletion verification method in non-volatile semiconductor storage device | Toshitake Yaegashi, Yasuhiko Matsunaga | 2004-11-09 |
| 6807104 | Nonvolatile semiconductor memory device and data program method thereof | Akira Shimizu | 2004-10-19 |
| 6798698 | Nonvolatile semiconductor memory device | Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Riichiro Shirota, Susumu Fujimura | 2004-09-28 |
| 6784503 | Non-volatile semiconductor memory device having memory cell array suitable for high density and high integration | Kazuhiro Shimizu | 2004-08-31 |
| 6680230 | Semiconductor device and method of fabricating the same | Norihisa Arai, Seiichi Aritome, Akira Shimizu, Riichiro Shirota | 2004-01-20 |