Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12063779 | Non-volatile semiconductor memory device and manufacturing method thereof | Ryota Katsumata | 2024-08-13 |
| 11342348 | Non-volatile semiconductor memory device and manufacturing method thereof | Ryota Katsumata | 2022-05-24 |
| 10748916 | Non-volatile semiconductor memory device and manufacturing method thereof | Ryota Katsumata | 2020-08-18 |
| 10134751 | Non-volatile semiconductor memory device and manufacturing method thereof | Ryota Katsumata | 2018-11-20 |
| 9935121 | Three dimensional vertical channel semiconductor memory device | Satoshi Konagai, Masaru Kito | 2018-04-03 |
| 9818753 | Semiconductor memory device and method for manufacturing the same | — | 2017-11-14 |
| 9768185 | Non-volatile semiconductor memory device and manufacturing method thereof | Ryota Katsumata | 2017-09-19 |
| 9741736 | Semiconductor memory device | — | 2017-08-22 |
| 9362298 | Non-volatile semiconductor memory device and manufacturing method thereof | Ryota Katsumata | 2016-06-07 |
| 9159613 | Non-volatile memory device, method for fabricating pattern on wafer and method for manufacturing non-volatile memory device using same | Masaru Kidoh, Tsuneo Uenaka, Tadashi Iguchi | 2015-10-13 |
| 9136358 | Nonvolatile semiconductor memory device and method for manufacturing same | Hiroshi Shinohara, Ryota Katsumata | 2015-09-15 |
| 8669608 | Method for manufacturing nonvolatile semiconductor storage device and nonvolatile semiconductor storage device | Mitsuru Sato, Megumi Ishiduki, Masaru Kidoh, Atsushi Konno, Masaru Kito +2 more | 2014-03-11 |