Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813210 | Semiconductor memory device requiring refresh operation | Takeo Okamoto, Tetsuichiro Ichiguchi, Hideki Yonetani, Tadaaki Yamauchi, Makoto Suwa +2 more | 2004-11-02 |
| 6775177 | Semiconductor memory device switchable to twin memory cell configuration | Takeo Okamoto, Tetsuichiro Ichiguchi, Hideki Yonetani, Makoto Suwa, Zengcheng Tian +2 more | 2004-08-10 |
| 6724223 | Semiconductor device used in two systems having different power supply voltages | Tetsuichiro Ichiguchi, Tadaaki Yamauchi, Zengcheng Tian, Makoto Suwa, Junko Matsumoto +2 more | 2004-04-20 |
| 6724679 | Semiconductor memory device allowing high density structure or high performance | Hideki Yonetani, Kozo Ishida, Shinichi Jinbo, Makoto Suwa, Tadaaki Yamauchi +3 more | 2004-04-20 |