Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686333 | Nonvolatile semiconductor memory device and method of producing the same | — | 1997-11-11 |
| 5612238 | Method of manufacturing first and second memory cell arrays with a capacitor and a nonvolatile memory cell | Shigeki Amano | 1997-03-18 |
| 5596527 | Electrically alterable n-bit per cell non-volatile memory with reference cells | Yugo Tomioka, Shoichi Iwasa, Toshio Wada, Kenji Anzai | 1997-01-21 |
| 5594688 | Nonvolatile semiconductor memory device and method of producing the same | — | 1997-01-14 |
| 5592003 | Nonvolatile semiconductor memory and method of rewriting data thereto | Kikuzo Sawada | 1997-01-07 |