Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683923 | Semiconductor memory device capable of electrically erasing and writing information and a manufacturing method of the same | Masahiro Shimizu, Takashi Kuroi, Takehisa Yamaguchi | 1997-11-04 |
| 5594264 | LDD semiconductor device with peak impurity concentrations | Yoshinori Okumura | 1997-01-14 |