Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699300 | Divided wordline memory arrangement having overlapping activation of wordlines during continuous access cycle | Hironori Akamatsu, Tsuyoshi Shiragasawa, Hisakazu Kotani | 1997-12-16 |
| 5251177 | Semiconductor memory device having an improved refresh operation | Hironori Akamatsu, Akinori Shibayama, Hisakazu Kotani | 1993-10-05 |
| 5150327 | Semiconductor memory and video signal processing circuit having the same | Hironori Akamatsu | 1992-09-22 |
| 4975932 | Shift register and shift register system with controllable transfer stages | Tsuoshi Shiragasawa, Hironori Akamatsu | 1990-12-04 |