Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9006793 | Non-volatile memory cell, non-volatile memory cell array, and method of manufacturing the same | Zhiqiang Wei, Takeshi Takagi | 2015-04-14 |
| 8710484 | Method for manufacturing non-volatile memory device, non-volatile memory element, and non-volatile memory device | Zhiqiang Wei, Takeshi Takagi | 2014-04-29 |
| 8675393 | Method for driving non-volatile memory element, and non-volatile memory device | Koji Katayama, Takeshi Takagi | 2014-03-18 |
| 8599602 | Method of programming variable resistance element, method of initializing variable resistance element, and nonvolatile storage device | Takeshi Takagi | 2013-12-03 |
| 8565004 | Nonvolatile memory device and method for programming the same | Takeshi Takagi, Koji Katayama | 2013-10-22 |
| 8432721 | Method of programming variable resistance element, method of initializing variable resistance element, and nonvolatile storage device | Takeshi Takagi | 2013-04-30 |
| 8422268 | Current control element, memory element, and fabrication method thereof | Koji Arita, Takumi Mikawa, Takashi Okada | 2013-04-16 |
| 8355274 | Current steering element, storage element, storage device, and method for manufacturing current steering element | Koji Arita, Takumi Mikawa, Kenji Tominaga | 2013-01-15 |
| 8339835 | Nonvolatile memory element and semiconductor memory device including nonvolatile memory element | Zhiqiang Wei, Takeshi Takagi | 2012-12-25 |
| 8320159 | Resistance variable nonvolatile memory device | Zhiqiang Wei, Ryotaro Azuma, Takeshi Takagi, Yoshihiko Kanzawa | 2012-11-27 |
| 8295123 | Current rectifying element, memory device incorporating current rectifying element, and fabrication method thereof | Takeshi Takagi, Takumi Mikawa, Koji Arita, Takashi Okada | 2012-10-23 |
| 8179714 | Nonvolatile storage device and method for writing into memory cell of the same | Takeshi Takagi, Shunsaku Muraoka, Ken Kawai, Kazuhiko Shimakawa | 2012-05-15 |
| 7026687 | Non-volatile semiconductor memory and method of manufacturing the same | Satoshi Shinozaki, Hideo Kurihara | 2006-04-11 |
| 6804151 | Nonvolatile semiconductor memory device of virtual-ground memory array with reliable data reading | — | 2004-10-12 |
| 6765271 | Method for manufacturing non-volatile semiconductor memory and non-volatile semiconductor memory manufactured thereby | — | 2004-07-20 |
| 6750520 | Two-bit semiconductor memory with enhanced carrier trapping | Hideo Kurihara, Kiyoshi Itano, Tetsuya Chida | 2004-06-15 |
| 6650568 | Method of read operation of nonvolatile semiconductor memory and nonvolatile semiconductor memory | — | 2003-11-18 |
| 6468861 | Method for manufacturing non-volatile semiconductor memory | — | 2002-10-22 |
| 6324099 | 2-bit/cell type nonvolatile semiconductor memory | — | 2001-11-27 |