Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642574 | Semiconductor memory device and manufacturing method thereof | Hideo Sunami, Kiyoo Itoh, Toshikazu Shimada, Hiroshi Mizuta | 2003-11-04 |
| 6574143 | Memory device using hot charge carrier converters | — | 2003-06-03 |
| 6515892 | Semiconductor integrated circuit device | Kiyoo Itoh | 2003-02-04 |