Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8143723 | Highly integrated and reliable DRAM and its manufacture | Narumi Okawa | 2012-03-27 |
| 7649261 | Highly integrated and reliable DRAM and its manufacture | Narumi Okawa | 2010-01-19 |
| 7420860 | Semiconductor memory having a dummy signal line connected to dummy memory cell | Shinichi Yamada, Waichiro Fujieda | 2008-09-02 |
| 7411257 | Semiconductor device having guard ring and manufacturing method thereof | Kazutaka Yoshizawa, Kazuki Sato | 2008-08-12 |
| 7372157 | Semiconductor device including titanium wires and manufacturing method therefor | Kazutaka Yoshizawa | 2008-05-13 |
| 7238608 | Semiconductor device and manufacturing method thereof | Toru Anezaki | 2007-07-03 |
| 7184333 | Semiconductor memory having a dummy signal line connected to dummy memory cell | Shinichi Yamada, Waichiro Fujieda | 2007-02-27 |
| 7145242 | Highly integrated and reliable DRAM | Narumi Okawa | 2006-12-05 |
| 7132720 | Semiconductor device having guard ring and manufacturing method thereof | Kazutaka Yoshizawa, Kazuki Sato | 2006-11-07 |
| 6930347 | Semiconductor memory device having electrical connection by side contact | Narumi Okawa | 2005-08-16 |
| 6818993 | Insulation structure for wiring which is suitable for self-aligned contact and multilevel wiring | Narumi Okawa | 2004-11-16 |
| 6624525 | Contact plug in capacitor device | Toru Anezaki | 2003-09-23 |
| 6475858 | Method of manufacturing semiconductor device | Koichi Sugiyama, Yukio Hosoda | 2002-11-05 |
| 6410423 | Semiconductor device and manufacturing method thereof | Toru Anezaki | 2002-06-25 |
| 6384441 | Semiconductor device and method of manufacturing the same | Koichi Sugiyama, Yukio Hosoda | 2002-05-07 |
| 6344692 | Highly integrated and reliable DRAM adapted for self-aligned contact | Narumi Okawa | 2002-02-05 |
| 6309921 | Semiconductor device and method for fabricating semiconductor device | Taiji Ema, Kazuo Itabashi, Junichi Mitani, Itsuo Yanagita, Seiichi Suzuki | 2001-10-30 |
| 6004842 | Method of making a DRAM with a transfer transistor | Kazuhiro Mizutani | 1999-12-21 |
| 5780907 | Semiconductor device having triple wells | Taiji Ema, Kazuo Itabashi, Junichi Mitani, Itsuo Yanagita, Seiichi Suzuki | 1998-07-14 |