Issued Patents 2004
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813211 | Fully hidden refresh dynamic random access memory | Takafumi Takatsuka, Hirotoshi Sato | 2004-11-02 |
| 6798236 | Output buffer circuit with power supply voltages different from a power supply voltage applied to an internal circuit | Tadayuki Shimizu, Takafumi Takatsuka | 2004-09-28 |
| 6795943 | Semiconductor device with test mode | Hirotoshi Sato, Ryu Makabe | 2004-09-21 |
| 6744679 | Semiconductor memory device | Hirotoshi Sato, Takafumi Takatsuka | 2004-06-01 |
| 6737906 | Semiconductor integrated circuit device including a negative power supply circuit | Minoru Senda | 2004-05-18 |
| 6721225 | Semiconductor memory device with activation of a burst refresh when a long cycle is detected | — | 2004-04-13 |
| 6717878 | Semiconductor device | Tsukasa Hagura | 2004-04-06 |
| 6714047 | Semiconductor integrated circuit | Tadayuki Shimizu, Takafumi Takatsuka | 2004-03-30 |
| 6707735 | Semiconductor memory device | Ryu Makabe, Hirotoshi Sato | 2004-03-16 |
| 6697910 | Semiconductor memory device having refresh circuit | Shinichi Kobayashi, Hirotoshi Sato | 2004-02-24 |
| 6693838 | Semiconductor memory device equipped with refresh timing signal generator | Tsukasa Hagura, Takafumi Takatsuka | 2004-02-17 |