Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643794 | Semiconductor storage unit | — | 2003-11-04 |
| 6094392 | Semiconductor memory device | Masami Hanyu, Tadahiko Sugibayashi | 2000-07-25 |
| 5973973 | Semiconductor memory device | — | 1999-10-26 |
| 5953275 | Semiconductor memory device having sense amplifiers shared between open bit line less affected by adjacent ones | Tadahiko Sugibayashi, Masami Hanyu | 1999-09-14 |
| 5631872 | Low power consumption semiconductor dynamic random access memory device by reusing residual electric charge on bit line pairs | Isao Naritake, Tadahiko Sugibayashi, Tatsunori Murotani | 1997-05-20 |
| 5596542 | Semiconductor memory device having dual word line configuration | Tadahiko Sugibayashi, Isao Naritake | 1997-01-21 |