Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650656 | Semiconductor memory device capable of storing plural-bit data in a single memory cell | — | 1997-07-22 |
| 5610858 | Non-volatile semiconductor memory device and method of manufacturing the same | — | 1997-03-11 |
| 5597748 | Method of manufacturing NAND type EEPROM | Masamichi Asano, Ryouhei Kirisawa, Ryozo Nakayama, Satoshi Inoue, Riichiro Shirota +2 more | 1997-01-28 |
| 5596525 | Memory cell of nonvolatile semiconductor memory device | — | 1997-01-21 |