Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663904 | Ferroelectric memory using pair of reference cells | — | 1997-09-02 |
| 5654922 | Nonvolatile semiconductor flash memory | Akira Nakagawara | 1997-08-05 |
| 5650962 | Semiconductor nonvolatile memory device | — | 1997-07-22 |