Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9384829 | Memory device | Hironobu Furuhashi, Iwao Kunishima, Yoshiaki Asao, Gaku Sudo | 2016-07-05 |
| 9324406 | Semiconductor memory device | Takayuki Okada, Iwao Kunishima | 2016-04-26 |
| 9171886 | Semiconductor memory device and manufacturing method thereof | Hiroyuki Kanaya, Yukinori Koyama, Kuniaki SUGIURA | 2015-10-27 |
| 8953359 | Semiconductor memory device | Takayuki Okada, Iwao Kunishima | 2015-02-10 |
| 8885396 | Memory device and method for manufacturing the same | Takaya Yamanaka | 2014-11-11 |
| 8860103 | Semiconductor memory device | — | 2014-10-14 |
| 8861251 | Semiconductor storage device | — | 2014-10-14 |
| 8854914 | Semiconductor memory device | — | 2014-10-07 |
| 8804408 | Semiconductor storage device | — | 2014-08-12 |
| 8724377 | Memory device and method for manufacturing the same | Takaya Yamanaka, Yoshiaki Asao | 2014-05-13 |
| 8503223 | Semiconductor storage device | — | 2013-08-06 |
| 8129766 | Semiconductor memory device comprising shifted contact plugs | — | 2012-03-06 |
| 7663905 | Ferroelectric memory device and data read method in same | — | 2010-02-16 |
| 7551472 | Ferroelectric semiconductor memory device | — | 2009-06-23 |
| 7535745 | Ferroelectric memory device and method of manufacturing the same | — | 2009-05-19 |
| 7436691 | Semiconductor storage device, operation method of the same and test method of the same | Yuki Yamada | 2008-10-14 |
| 7417274 | Semiconductor device including direct contact between capacitor electrode and contact plug and method of manufacturing the same | Tohru Ozaki, Yoshinori Kumura, Yoshiro Shimojo | 2008-08-26 |
| 7348617 | Semiconductor device | Yoshinori Kumura, Tohru Ozaki, Yoshiro Shimojo, Iwao Kunishima | 2008-03-25 |
| 7339828 | Nonvolatile semiconductor memory device with memory cells, each having an FG cell transistor and select gate transistor, and a method of writing data into the same | Takehiro Hasegawa | 2008-03-04 |
| 7289365 | Nonvolatile semiconductor memory device in which write and erase threshold voltages are set at levels symmetrical about neutral threshold voltage of cell transistor | — | 2007-10-30 |
| 7266023 | Nonvolatile semiconductor memory device which reads by decreasing effective threshold voltage of selector gate transistor | — | 2007-09-04 |
| 7050338 | Semiconductor integrated circuit device having memory cells divided into groups | — | 2006-05-23 |
| 7046542 | Semiconductor integrated circuit device | — | 2006-05-16 |
| 6984861 | Semiconductor memory device having a ferroelectric capacitor | Yuki Yamada | 2006-01-10 |
| 6944007 | Capacitor structure | Yoshiro Shimojo | 2005-09-13 |