Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8988925 | Nonvolatile semiconductor memory device in which polarities of voltages in forming operation and set operation are different from each other | Takayuki Tsukamoto | 2015-03-24 |
| 8975611 | Nonvolatile variable resistance device having a semiconductor layer with higher percentage of unterminated semiconductor element than adjacent layers | Takashi Yamauchi, Shosuke Fujii | 2015-03-10 |
| 8873275 | Semiconductor storage device | — | 2014-10-28 |
| 8804401 | Non-volatile semiconductor memory device | Kikuko Sugimae | 2014-08-12 |
| 8759806 | Semiconductor memory device | Takeshi Yamaguchi, Hirofumi Inoue, Takayuki Tsukamoto, Takashi Shigeoka, Katsuyuki Sekine +1 more | 2014-06-24 |
| 8698277 | Nonvolatile variable resistance device having metal halogen or metal sulfide layer | Takashi Yamauchi, Shosuke Fujii | 2014-04-15 |
| 8633526 | Nonvolatile semiconductor memory device and method for manufacturing same | Shigeki Hattori, Masaya Terai, Hideyuki Nishizawa, Tsukasa Tada, Koji Asakawa +4 more | 2014-01-21 |
| 8610101 | Nonvolatile variable resistance element having a variable resistive layer disposed between first and second electrodes | Takashi Yamauchi, Shosuke Fujii | 2013-12-17 |
| 8575587 | Storage device and method of manufacturing the same | Koji Asakawa, Shigeki Hattori, Hideyuki Nishizawa, Satoshi Mikoshiba, Masaya Terai | 2013-11-05 |
| 8456890 | Multi-level resistance change memory | — | 2013-06-04 |
| 8410556 | Semiconductor device | Masato Koyama | 2013-04-02 |
| 8391048 | Non-volatile semiconductor memory device including memory cells with a variable resistor | Takayuki Tsukamoto, Kenichi Murooka, Hirofumi Inoue, Hiroshi Kanno | 2013-03-05 |
| 8355275 | Resistance change memory | Akira Takashima | 2013-01-15 |
| 8331137 | Nonvolatile semiconductor memory device | Akira Takashima | 2012-12-11 |
| 8324606 | Resistance change type memory | Takayuki Tsukamoto, Hiroshi Kanno, Kenichi Murooka | 2012-12-04 |
| 8320157 | Nonvolatile semiconductor memory device | Takayuki Tsukamoto, Hiroshi Kanno, Kenichi Murooka | 2012-11-27 |
| 8320158 | Nonvolatile semiconductor memory device | Hiroshi Kanno, Takayuki Tsukamoto, Kenichi Murooka, Hirofumi Inoue | 2012-11-27 |
| 8304304 | Semiconductor device | Yoshinori Tsuchiya, Masato Koyama, Akira Nishiyama | 2012-11-06 |
| 8274815 | Nonvolatile semiconductor memory device | Takayuki Tsukamoto | 2012-09-25 |
| 8263452 | Semiconductor device | Yoshinori Tsuchiya, Hiroki Tanaka, Masato Koyama | 2012-09-11 |
| 8174080 | Semiconductor device | Yoshinori Tsuchiya, Masato Koyama, Akira Nishiyama | 2012-05-08 |
| 8148787 | Semiconductor device and method for manufacturing the same | Masato Koyama, Akira Nishiyama, Yoshinori Tsuchiya | 2012-04-03 |
| 8129792 | Semiconductor device and method for manufacturing the same | Yoshinori Tsuchiya, Hiroki Tanaka, Masahiko Yoshiki, Masato Koyama | 2012-03-06 |
| 8085577 | Nonvolatile semiconductor memory device and method of data write/data erase therein | Hiroshi Kanno, Takayuki Tsukamoto, Kenichi Murooka | 2011-12-27 |
| 8076732 | Semiconductor device | Masato Koyama | 2011-12-13 |