Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7603592 | Semiconductor device having a sense amplifier array with adjacent ECC | Tomonori Sekiguchi, Riichiro Takemura, Satoru Hanzawa, Kazuhiko Kajigaya | 2009-10-13 |
| 7574648 | Semiconductor device | Riichiro Takemura, Tomonori Sekiguchi | 2009-08-11 |
| 7505299 | Semiconductor memory device | Riichiro Takemura, Satoru Hanzawa, Tomonori Sekiguchi, Kazuhiko Kajigaya | 2009-03-17 |
| 7492655 | Memory device having high speed sense amplifier comprising pull-up circuit and pull-down circuits with drivability for each | Riichiro Takemura, Takayuki Kawahara, Tomonori Sekiguchi | 2009-02-17 |
| 7489588 | Semiconductor memory device having a main amplifier equipped with a current control circuit in a burst read operation | Satoru Hanzawa, Tomonori Sekiguchi, Riichiro Takemura, Kazuhiko Kajigaya | 2009-02-10 |
| 7408218 | Semiconductor device having plural dram memory cells and a logic circuit | Takao Watanabe, Yuichi Matsui, Masahiko Hiratani | 2008-08-05 |
| 7310256 | Semiconductor memory device | Riichiro Takemura, Satoru Hanzawa, Tomonori Sekiguchi, Kazuhiko Kajigaya | 2007-12-18 |
| 7304910 | Semiconductor memory device with sub-amplifiers having a variable current source | Satoru Hanzawa, Tomonori Sekiguchi, Riichiro Takemura, Kazuhiko Kajigaya | 2007-12-04 |
| 7224629 | Memory device having high speed sense amplifier comprising pull-up circuit and pull-down circuits with different drivability for each | Riichiro Takemura, Takayuki Kawahara, Tomonori Sekiguchi | 2007-05-29 |
| 7193884 | Semiconductor memory device | Tomonori Sekiguchi, Riichiro Takemura, Satoru Hanzawa, Kazuhiko Kajigaya | 2007-03-20 |
| 7016246 | Three-transistor refresh-free pipelined dynamic random access memory | Takao Watanabe, Hiroyuki Mizuno | 2006-03-21 |
| 6848035 | Semiconductor device with multi-bank DRAM and cache memory | Yusuke Kanno, Takao Watanabe | 2005-01-25 |
| 6671210 | Three-transistor pipelined dynamic random access memory | Takao Watanabe, Hiroyuki Mizuno | 2003-12-30 |
| 6487135 | Semiconductor device | Takao Watanabe, Hiroyuki Mizuno | 2002-11-26 |