Issued Patents All Time
Showing 51–75 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504304 | Non-volatile semiconductor memory device and process of manufacturing the same | Koki Ueno | 2009-03-17 |
| 7446364 | Semiconductor memory device including multi-layer gate structure | — | 2008-11-04 |
| 7442978 | Semiconductor memory device including multi-layer gate structure | — | 2008-10-28 |
| 7436714 | Nonvolatile semiconductor memory | Kenji Sawamura | 2008-10-14 |
| 7425739 | Nonvolatile semiconductor memory | Hiroshi Watanabe, Hiroshi Nakamura, Kazuhiro Shimizu, Seiichi Aritome, Yuji Takeuchi +3 more | 2008-09-16 |
| 7332762 | Nonvolatile semiconductor memory | Hiroshi Watanabe, Hiroshi Nakamura, Kazuhiro Shimizu, Seiichi Aritome, Yuji Takeuchi +3 more | 2008-02-19 |
| 7315073 | Semiconductor device having an oxide film formed on a semiconductor substrate sidewall of an element region and on a sidewall of a gate electrode | Junichi Shiozawa | 2008-01-01 |
| 7309891 | Non-volatile and memory semiconductor integrated circuit | Yoshio Ozawa | 2007-12-18 |
| 7274075 | Nonvolatile semiconductor memory device having pair of selection transistors with different source and drain impurity concentrations and with different channel dopant concentrations | — | 2007-09-25 |
| 7184309 | Non-volatile semiconductor memory device | Yasuhiko Matsunaga, Fumitaka Arai, Riichiro Shirota | 2007-02-27 |
| 7151295 | Non-volatile semiconductor memory device and process of manufacturing the same | Koki Ueno | 2006-12-19 |
| 7135729 | Semiconductor memory device including multi-layer gate structure | — | 2006-11-14 |
| 7122869 | Nonvolatile semiconductor memory device in which selection transistors and memory transistors have different impurity concentration distributions | — | 2006-10-17 |
| 7115930 | Semiconductor memory device including multi-layer gate structure | — | 2006-10-03 |
| 7057936 | Nonvolatile semiconductor memory device | Akira Goda, Mitsuhiro Noguchi | 2006-06-06 |
| 7005345 | Non-volatile semiconductor memory device and its manufacturing method | Kazuhiro Shimizu, Seiichi Aritome | 2006-02-28 |
| 6995414 | Semiconductor memory device including multi-layer gate structure | — | 2006-02-07 |
| 6974979 | Nonvolatile semiconductor memory | Hiroshi Watanabe, Hiroshi Nakamura, Kazuhiro Shimizu, Seiichi Aritome, Yuji Takeuchi +3 more | 2005-12-13 |
| 6949794 | Non-volatile semiconductor memory device in which selection gate transistors and memory cells have different structures | — | 2005-09-27 |
| 6930921 | NAND type flash EEPROM in which sequential programming process is performed by using different intermediate voltages | Yasuhiko Matsunaga, Fumitaka Arai | 2005-08-16 |
| 6894931 | Nonvolatile semiconductor memory device | Akira Goda, Mitsuhiro Noguchi | 2005-05-17 |
| 6878985 | Nonvolatile semiconductor memory device having a memory cell that includes a floating gate electrode and control gate electrode | Fumitaka Arai, Riichiro Shirota, Akira Shimizu, Yasuhiko Matsunaga, Masayuki Ichige +1 more | 2005-04-12 |
| 6859395 | NAND type flash EEPROM in which sequential programming process is performed by using different intermediate voltages | Yasuhiko Matsunaga, Fumitaka Arai | 2005-02-22 |
| 6859394 | NAND type non-volatile semiconductor memory device | Yasuhiko Matsunaga, Fumitaka Arai, Riichiro Shirota | 2005-02-22 |
| 6835987 | Non-volatile semiconductor memory device in which selection gate transistors and memory cells have different structures | — | 2004-12-28 |