Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12394455 | Memory system and non-volatile memory using soft bit data information to improve memory operation | Keisuke Azuma, Daisuke ARIZONO | 2025-08-19 |
| 12354652 | Memory device applying plural different read voltages to a word line in a read operation | Noboru Shibata | 2025-07-08 |
| 12198779 | Non-volatile memory and memory system | — | 2025-01-14 |
| 12183405 | Semiconductor memory device and memory system | Mitsuhiro Abe, Yasuhiro HIRASHIMA | 2024-12-31 |
| 11915778 | Semiconductor memory device outputting data from memory cell groups in parallel and system | Daisuke ARIZONO, Akio SUGAHARA, Mitsuhiro Abe | 2024-02-27 |
| 11430525 | Memory device | Tomoko Araya | 2022-08-30 |
| 10839917 | Memory device | Tomoko Araya | 2020-11-17 |
| 10249377 | Semiconductor memory device | Hayao KASAI, Osamu Nagao, Yoshikazu Harada, Akio SUGAHARA | 2019-04-02 |
| 10127104 | Semiconductor memory device and memory system | — | 2018-11-13 |
| 9640265 | Semiconductor memory device | — | 2017-05-02 |
| 8854878 | Nonvolatile semiconductor memory device | — | 2014-10-07 |
| 8649222 | Nonvolatile semiconductor memory device which transfers a plurality of voltages to memory cells and method of writing the same | — | 2014-02-11 |
| 8605500 | Multilevel nonvolatile semiconductor memory system | Naoki Kobayashi, Noboru Shibata | 2013-12-10 |
| 8547744 | Nonvolatile semiconductor memory device | Yuko Namiki | 2013-10-01 |
| 8493788 | Semiconductor memory device and control method thereof | Yuko Namiki | 2013-07-23 |
| 8482983 | Nonvolatile semiconductor memory device which transfers a plurality of voltages to memory cells and method of writing the same | — | 2013-07-09 |
| 8472259 | Non-volatile semiconductor memory device | Takuya Futatsuyama | 2013-06-25 |
| 8363479 | Nonvolatile semiconductor memory device | — | 2013-01-29 |
| 8332726 | Non-volatile semiconductor memory device | Hironori Uchikawa, Tatsuyuki Ishikawa | 2012-12-11 |
| 8239730 | Non-volatile semiconductor memory device | Hironori Uchikawa, Tatsuyuki Ishikawa | 2012-08-07 |
| 8174883 | Semiconductor memory device capable of preventing a shift of threshold voltage | Noboru Shibata | 2012-05-08 |
| 8164961 | Nonvolatile semiconductor memory device which can electrically rewrite data and system therefor | — | 2012-04-24 |
| 8159882 | Nonvolatile semiconductor memory device and memory system | Noboru Shibata | 2012-04-17 |
| 8136014 | Non-volatile semiconductor memory device | Hironori Uchikawa, Tatsuyuki Ishikawa | 2012-03-13 |
| 8078940 | Non-volatile semiconductor memory device | Hironori Uchikawa, Tatsuyuki Ishikawa | 2011-12-13 |