Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10692884 | Three-dimensional memory device including bottle-shaped memory stack structures and drain-select gate electrodes having cylindrical portions | Zhixin Cui, Kiyohiko Sakakibara | 2020-06-23 |
| 10600800 | Three-dimensional memory device containing multilevel drain select gate isolation and methods of making the same | Masatoshi Nishikawa, Yanli Zhang | 2020-03-24 |
| 10559582 | Three-dimensional memory device containing source contact to bottom of vertical channels and method of making the same | Masatoshi Nishikawa, Masanori Tsutsumi | 2020-02-11 |