Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11665908 | Semiconductor memory device incorporating hafnium oxide insulative portions | Hidenori Miyagawa, Shosuke Fujii, Kiwamu Sakuma, Fumitaka Arai, Kunifumi Suzuki | 2023-05-30 |
| 11430500 | Semiconductor storage device | Kiwamu Sakuma, Masumi Saitoh | 2022-08-30 |
| 10833103 | Semiconductor memory device | Hidenori Miyagawa, Shosuke Fujii, Kiwamu Sakuma, Fumitaka Arai | 2020-11-10 |
| 10446552 | Memory element | Dandan ZHAO, Reika Ichihara, Yuuichiro Mitani | 2019-10-15 |
| 10008509 | Non-volatile semiconductor memory device | Kiwamu Sakuma, Masahiro Kiyotoshi | 2018-06-26 |
| 9711518 | Non-volatile semiconductor memory device | Kiwamu Sakuma, Masahiro Kiyotoshi | 2017-07-18 |
| 9293470 | Non-volatile semiconductor memory device | Kiwamu Sakuma, Masahiro Kiyotoshi | 2016-03-22 |
| 9196629 | Non-volatile semiconductor memory device having carbon doped columnar semiconductor layer | Shuichi Toriyama, Masumi Saitoh, Yoshiaki Fukuzumi, Naoki Yasuda | 2015-11-24 |