Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646932 | Semiconductor memory device having redundancy system | Daisuke Kato, Yohji Watanabe | 2003-11-11 |
| 6570801 | Semiconductor memory having refresh function | Hiroshi Shinya | 2003-05-27 |