Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11183507 | Semiconductor memory device and method for manufacturing same | Katsuyuki Sekine, Fumitaka Arai, Toshiyuki Iwamoto, Yuta Watanabe, Wataru Sakamoto +2 more | 2021-11-23 |
| 11152385 | Stacked type semiconductor memory device and method for manufacturing the same | Wataru Sakamoto, Fumitaka Arai | 2021-10-19 |
| 11049868 | Stacked type semiconductor memory device | Satoshi Nagashima, Wataru Sakamoto | 2021-06-29 |
| 11018148 | Semiconductor memory device and method for manufacturing same | Yuta Watanabe, Fumitaka Arai, Katsuyuki Sekine, Toshiyuki Iwamoto, Wataru Sakamoto | 2021-05-25 |
| 10910392 | Semiconductor memory device | Mikiko Mori, Ryota Suzuki, Wataru Sakamoto, Fumie Kikushima | 2021-02-02 |