Issued Patents All Time
Showing 25 most recent of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9390797 | Driving method of variable resistance element and non-volatile memory device | Shunsaku Muraoka, Takeshi Takagi, Koji Katayama | 2016-07-12 |
| 9153319 | Method for driving nonvolatile memory element, and nonvolatile memory device having a variable resistance element | Shunsaku Muraoka, Takeshi Takagi | 2015-10-06 |
| 9111610 | Method of driving nonvolatile memory element and nonvolatile memory device | Koji Katayama, Shunsaku Muraoka, Zhiqiang Wei, Takeshi Takagi | 2015-08-18 |
| 9082479 | Nonvolatile memory element and nonvolatile memory device | Zhiqiang Wei, Takeshi Takagi, Shunsaku Muraoka, Koji Katayama | 2015-07-14 |
| 9006698 | Variable resistance element and method of manufacturing the same | Zhiqiang Wei, Takeshi Takagi, Yoshio Kawashima, Ichirou Takahashi | 2015-04-14 |
| 8942025 | Variable resistance nonvolatile memory element writing method | Koji Katayama, Takeshi Takagi | 2015-01-27 |
| 8830730 | Variable resistance nonvolatile storage device and method of forming memory cell | Shunsaku Muraoka, Yoshihiko Kanzawa, Koji Katayama, Kazuhiko Shimakawa, Satoru Fujii +1 more | 2014-09-09 |
| 8553446 | Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor device incorporating nonvolatile memory element | Yoshihiko Kanzawa, Koji Katayama, Takeshi Takagi | 2013-10-08 |
| 8553444 | Variable resistance nonvolatile storage device and method of forming memory cell | Shunsaku Muraoka, Yoshihiko Kanzawa, Koji Katayama, Kazuhiko Shimakawa, Satoru Fujii +1 more | 2013-10-08 |
| 8472238 | Variable resistance nonvolatile storage device with oxygen-deficient oxide layer and asymmetric substrate bias effect | Kazuhiko Shimakawa, Yoshihiko Kanzawa, Shunsaku Muraoka | 2013-06-25 |
| 8445319 | Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory element | Yoshihiko Kanzawa, Koji Katayama, Satoru Fujii, Shunsaku Muraoka, Koichi Osano +3 more | 2013-05-21 |
| 8445885 | Nonvolatile memory element having a thin platinum containing electrode | Yoshihiko Kanzawa, Zhiqiang Wei, Takeshi Takagi, Koji Katayama | 2013-05-21 |
| 8445886 | Nonvolatile memory element, nonvolatile memory device, nonvolatile semiconductor device, and method of manufacturing nonvolatile memory element | Satoru Fujii, Koji Arita, Takumi Mikawa | 2013-05-21 |
| 8395930 | Method of programming variable resistance element and nonvolatile storage device | Shunsaku Muraoka, Takeshi Takagi, Koji Katayama | 2013-03-12 |
| 8345465 | Driving method of variable resistance element, initialization method of variable resistance element, and nonvolatile storage device | Shunsaku Muraoka, Takeshi Takagi, Koji Katayama | 2013-01-01 |
| 8338816 | Nonvolatile memory element, and nonvolatile semiconductor device using the nonvolatile memory element | Yoshihiko Kanzawa, Shunsaku Muraoka, Zhiqiang Wei, Takeshi Takagi | 2012-12-25 |
| 8309946 | Resistance variable element | Shunsaku Muraoka, Yoshihiko Kanzawa, Koji Katayama, Ryoko Miyanaga, Satoru Fujii +1 more | 2012-11-13 |
| 8279658 | Method of programming variable resistance element and nonvolatile storage device | Shunsaku Muraoka, Takeshi Takagi, Koji Katayama | 2012-10-02 |
| 8264865 | Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor device incorporating nonvolatile memory element | Yoshihiko Kanzawa, Koji Katayama, Takeshi Takagi | 2012-09-11 |
| 8233311 | Variable resistance nonvolatile storage device having a source line formed of parallel wiring layers connected to each other through vias | Kazuhiko Shimakawa, Yoshihiko Kanzawa, Shunsaku Muraoka | 2012-07-31 |
| 8179713 | Nonvolatile memory element, nonvolatile memory device, and nonvolatile semiconductor device | Yoshihiko Kanzawa, Zhiqiang Wei, Takeshi Takagi | 2012-05-15 |
| 8094485 | Variable resistance nonvolatile storage device with oxygen-deficient oxide layer and asymmetric substrate bias effect | Kazuhiko Shimakawa, Yoshihiko Kanzawa, Shunsaku Muraoka | 2012-01-10 |
| 8022502 | Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory element | Yoshihiko Kanzawa, Koji Katayama, Satoru Fujii, Shunsaku Muraoka, Koichi Osano +3 more | 2011-09-20 |
| 7964869 | Memory element, memory apparatus, and semiconductor integrated circuit | Shunsaku Muraoka, Satoru Fujii, Koichi Osano | 2011-06-21 |
| 7855910 | Electric element, memory device, and semiconductor integrated circuit | Koichi Osano, Shunsaku Muraoka, Kumio Nago | 2010-12-21 |