Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813211 | Fully hidden refresh dynamic random access memory | Takafumi Takatsuka, Masaki Tsukude | 2004-11-02 |
| 6795943 | Semiconductor device with test mode | Masaki Tsukude, Ryu Makabe | 2004-09-21 |
| 6744679 | Semiconductor memory device | Masaki Tsukude, Takafumi Takatsuka | 2004-06-01 |
| 6707735 | Semiconductor memory device | Ryu Makabe, Masaki Tsukude | 2004-03-16 |
| 6697910 | Semiconductor memory device having refresh circuit | Masaki Tsukude, Shinichi Kobayashi | 2004-02-24 |