Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813210 | Semiconductor memory device requiring refresh operation | Takeo Okamoto, Tetsuichiro Ichiguchi, Hideki Yonetani, Tsutomu Nagasawa, Tadaaki Yamauchi +2 more | 2004-11-02 |
| 6775177 | Semiconductor memory device switchable to twin memory cell configuration | Takeo Okamoto, Tetsuichiro Ichiguchi, Hideki Yonetani, Tsutomu Nagasawa, Makoto Suwa +2 more | 2004-08-10 |
| 6724223 | Semiconductor device used in two systems having different power supply voltages | Tetsuichiro Ichiguchi, Tsutomu Nagasawa, Tadaaki Yamauchi, Makoto Suwa, Junko Matsumoto +2 more | 2004-04-20 |
| 6724679 | Semiconductor memory device allowing high density structure or high performance | Tsutomu Nagasawa, Hideki Yonetani, Kozo Ishida, Shinichi Jinbo, Makoto Suwa +3 more | 2004-04-20 |
| 6717460 | Semiconductor device | Tadaaki Yamauchi, Takeo Okamoto, Junko Matsumoto | 2004-04-06 |