Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813212 | Semiconductor memory device and refresh control circuit | Hiroyuki Takahashi | 2004-11-02 |
| 6751144 | Semiconductor storage and method for testing the same | Hiroyuki Takahashi, Hideo Inaba | 2004-06-15 |