Issued Patents All Time
Showing 26–50 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8445319 | Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory element | Yoshihiko Kanzawa, Koji Katayama, Satoru Fujii, Koichi Osano, Satoru Mitani +3 more | 2013-05-21 |
| 8441837 | Variable resistance nonvolatile memory device | Yuuichirou Ikeda, Kazuhiko Shimakawa, Yoshihiko Kanzawa, Ryotaro Azuma | 2013-05-14 |
| 8406035 | Nonvolatile memory device and method of writing data to nonvolatile memory device | Yoshikazu Katoh, Takeshi Takagi | 2013-03-26 |
| 8395930 | Method of programming variable resistance element and nonvolatile storage device | Takeshi Takagi, Satoru Mitani, Koji Katayama | 2013-03-12 |
| 8395925 | Forming method for variable resistance nonvolatile memory element, and variable resistance nonvolatile memory device | Ken Kawai, Kazuhiko Shimakawa, Ryotaro Azuma | 2013-03-12 |
| 8345465 | Driving method of variable resistance element, initialization method of variable resistance element, and nonvolatile storage device | Takeshi Takagi, Satoru Mitani, Koji Katayama | 2013-01-01 |
| 8338816 | Nonvolatile memory element, and nonvolatile semiconductor device using the nonvolatile memory element | Yoshihiko Kanzawa, Satoru Mitani, Zhiqiang Wei, Takeshi Takagi | 2012-12-25 |
| 8325508 | Writing method for variable resistance nonvolatile memory element, and variable resistance nonvolatile memory device | Ken Kawai, Kazuhiko Shimakawa, Ryotaro Azuma | 2012-12-04 |
| 8309946 | Resistance variable element | Satoru Mitani, Yoshihiko Kanzawa, Koji Katayama, Ryoko Miyanaga, Satoru Fujii +1 more | 2012-11-13 |
| 8305795 | Nonvolatile variable resistance memory element writing method, and nonvolatile variable resistance memory device | Ryotaro Azuma, Kazuhiko Shimakawa, Ken Kawai | 2012-11-06 |
| 8279658 | Method of programming variable resistance element and nonvolatile storage device | Takeshi Takagi, Satoru Mitani, Koji Katayama | 2012-10-02 |
| 8279657 | Nonvolatile memory element and nonvolatile memory device | Takeshi Takagi, Zhiqiang Wei, Takeki Ninomiya, Yoshihiko Kanzawa | 2012-10-02 |
| 8263961 | Thin film memory device having a variable resistance | Koichi Osano, Hiroshi Sakakima | 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, Satoru Mitani | 2012-07-31 |
| 8217489 | Nonvolatile memory element having a tantalum oxide variable resistance layer | Koichi Osano, Satoru Fujii | 2012-07-10 |
| 8179714 | Nonvolatile storage device and method for writing into memory cell of the same | Takeshi Takagi, Mitsuteru Iijima, Ken Kawai, Kazuhiko Shimakawa | 2012-05-15 |
| 8125818 | Method of programming variable resistance element and variable resistance memory device using the same | Takeshi Takagi, Kazuhiko Shimakawa | 2012-02-28 |
| 8125817 | Nonvolatile storage device and method for writing into the same | Takeshi Takagi, Ryotaro Azuma, Kunitoshi Aono | 2012-02-28 |
| 8094485 | Variable resistance nonvolatile storage device with oxygen-deficient oxide layer and asymmetric substrate bias effect | Kazuhiko Shimakawa, Yoshihiko Kanzawa, Satoru Mitani | 2012-01-10 |
| 8058636 | Variable resistance nonvolatile memory apparatus | Koichi Osano, Satoru Fujii | 2011-11-15 |
| 8022502 | Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory element | Yoshihiko Kanzawa, Koji Katayama, Satoru Fujii, Koichi Osano, Satoru Mitani +3 more | 2011-09-20 |
| 8018760 | Resistance variable element and resistance variable memory apparatus | Koichi Osano, Satoru Fujii | 2011-09-13 |
| 8018761 | Resistance variable element, resistance variable memory apparatus, and resistance variable apparatus | Koichi Osano, Satoru Fujii | 2011-09-13 |
| 7964869 | Memory element, memory apparatus, and semiconductor integrated circuit | Satoru Fujii, Satoru Mitani, Koichi Osano | 2011-06-21 |
| 7965539 | Nonvolatile memory element, nonvolatile semiconductor memory apparatus, and reading method and writing method therefor | Koichi Osano, Satoru Fujii, Kazuhiko Shimakawa | 2011-06-21 |