Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644544 | Semiconductor dynamic random access memory device variable in refresh cycle | — | 1997-07-01 |
| 5260906 | Semiconductor memory having built-in test circuit | — | 1993-11-09 |
| 4922457 | Serial access memory system provided with improved cascade buffer circuit | — | 1990-05-01 |
| 4807196 | Refresh address counter test control circuit for dynamic random access memory system | — | 1989-02-21 |