Issued Patents All Time
Showing 1–25 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12389610 | Memory device with memory strings using variable resistance memory regions | Daisaburo Takashima, Takahiko Iizuka | 2025-08-12 |
| 12277989 | Semiconductor memory device | Hidehiro Shiga, Daisaburo Takashima | 2025-04-15 |
| 12069872 | Memory device and method of manufacturing memory device | Takahiko Iizuka, Daisaburo Takashima, Rieko FUNATSUKI, Yoshiki Kamata, Misako Morota +2 more | 2024-08-20 |
| 11765916 | Memory device and method of manufacturing memory device | Takahiko Iizuka, Daisaburo Takashima, Rieko FUNATSUKI, Yoshiki Kamata, Misako Morota +2 more | 2023-09-19 |
| 11744088 | Memory device | Daisaburo Takashima, Takahiko Iizuka | 2023-08-29 |
| 11721371 | Memory device having sense amplifier including plural sense circuits for sensing a voltage of a bit line in a read operation | Daisaburo Takashima, Takahiko Iizuka | 2023-08-08 |
| 11651818 | Memory device | Daisaburo Takashima, Takahiko Iizuka | 2023-05-16 |
| 11615840 | Memory device | Daisaburo Takashima, Takahiko Iizuka | 2023-03-28 |
| 11120866 | Memory device | Takahiko Iizuka, Daisaburo Takashima | 2021-09-14 |
| 10950278 | Nonvolatile memory device including memory element in equal cross-sectional area of word lines and bit lines | Takahiko Iizuka, Daisaburo Takashima | 2021-03-16 |
| 10923189 | Memory device | Daisaburo Takashima, Takahiko Iizuka | 2021-02-16 |
| 10803932 | Storage device | Daisaburo Takashima, Takahiko Iizuka | 2020-10-13 |
| 10672468 | Memory device | Daisaburo Takashima | 2020-06-02 |
| 10490271 | Resistance change memory device | Daisaburo Takashima | 2019-11-26 |
| 10410720 | Multi-layer resistive memory device with variable resistance elements | Takahiko Iizuka, Daisaburo Takashima | 2019-09-10 |
| 10032509 | Semiconductor memory device including variable resistance element | Daisaburo Takashima | 2018-07-24 |
| 9966136 | Semiconductor memory device including variable resistance element | Daisaburo Takashima | 2018-05-08 |
| 9928903 | Semiconductor storage device with voltage generator which generates voltages and currents for read and write operations | Daisaburo Takashima | 2018-03-27 |
| 9607693 | Semiconductor storage device | Daisaburo Takashima | 2017-03-28 |
| 9460785 | Semiconductor storage device | Daisaburo Takashima | 2016-10-04 |
| 9437307 | Nonvolatile semiconductor memory device | Kiyotaro Itagaki, Masaru Kito, Hitoshi Iwai | 2016-09-06 |
| 9418740 | Semiconductor storage device writing data into memory cells using a half selected state and a write state | Daisaburo Takashima | 2016-08-16 |
| 9412449 | Semiconductor storage device | Daisaburo Takashima | 2016-08-09 |
| 9311996 | Semiconductor storage device having resistance-change storage elements | Daisaburo Takashima | 2016-04-12 |
| 9240226 | Semiconductor storage device | Daisaburo Takashima | 2016-01-19 |