Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566119 | Synchronous DRAM performing refresh operation a plurality of times in response to each refresh request command | — | 1996-10-15 |
| 5414660 | Double word line type dynamic RAM having redundant sub-array of cells | Tadahiko Sugibayashi, Isao Naritake | 1995-05-09 |
| 5357474 | Dynamic random access memory device having precharge circuit for intermittently and selectively charging data line pairs | Tadahiko Sugibayashi, Hiroshi Takada | 1994-10-18 |