Issued Patents All Time
Showing 1–25 of 230 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12389610 | Memory device with memory strings using variable resistance memory regions | Ryu Ogiwara, Takahiko Iizuka | 2025-08-12 |
| 12277989 | Semiconductor memory device | Ryu Ogiwara, Hidehiro Shiga | 2025-04-15 |
| 12219889 | Semiconductor storage device | Masahiro Takahashi, Yoshiaki Asao, Yukihiro Nomura | 2025-02-04 |
| 12213324 | Nonvolatile semiconductor memory device with a plurality of memory cells arranged in a three-dimensional direction | — | 2025-01-28 |
| 12207480 | Variable resistance non-volatile memory with a gate insulator film at a same height as a voltage application electrode | Tomoki Chiba, Hidehiro Shiga | 2025-01-21 |
| 12144189 | Three dimensional stacked semiconductor memory | Hidehiro Shiga | 2024-11-12 |
| 12069872 | Memory device and method of manufacturing memory device | Takahiko Iizuka, Ryu Ogiwara, Rieko FUNATSUKI, Yoshiki Kamata, Misako Morota +2 more | 2024-08-20 |
| 11972797 | Memory device | Hidehiro Shiga | 2024-04-30 |
| 11972798 | Variable resistance nonvolatile memory | Tomoki Chiba, Hidehiro Shiga | 2024-04-30 |
| 11948636 | Memory device | Yoshiki Kamata, Yoshiaki Asao, Yukihiro Nomura, Misako Morota, Takahiko Iizuka +1 more | 2024-04-02 |
| 11765916 | Memory device and method of manufacturing memory device | Takahiko Iizuka, Ryu Ogiwara, Rieko FUNATSUKI, Yoshiki Kamata, Misako Morota +2 more | 2023-09-19 |
| 11744088 | Memory device | Ryu Ogiwara, Takahiko Iizuka | 2023-08-29 |
| 11742019 | Nonvolatile semiconductor memory device | — | 2023-08-29 |
| 11721371 | Memory device having sense amplifier including plural sense circuits for sensing a voltage of a bit line in a read operation | Ryu Ogiwara, Takahiko Iizuka | 2023-08-08 |
| 11651818 | Memory device | Ryu Ogiwara, Takahiko Iizuka | 2023-05-16 |
| 11615840 | Memory device | Ryu Ogiwara, Takahiko Iizuka | 2023-03-28 |
| 11373703 | Semiconductor storage device | Sumiko Domae | 2022-06-28 |
| 11201171 | Semiconductor storage device | Sumiko Domae | 2021-12-14 |
| 11120866 | Memory device | Takahiko Iizuka, Ryu Ogiwara | 2021-09-14 |
| 10950278 | Nonvolatile memory device including memory element in equal cross-sectional area of word lines and bit lines | Takahiko Iizuka, Ryu Ogiwara | 2021-03-16 |
| 10923189 | Memory device | Ryu Ogiwara, Takahiko Iizuka | 2021-02-16 |
| 10803932 | Storage device | Ryu Ogiwara, Takahiko Iizuka | 2020-10-13 |
| 10672468 | Memory device | Ryu Ogiwara | 2020-06-02 |
| 10644065 | Nonvolatile memory device | — | 2020-05-05 |
| RE47946 | Method for determining the exhaustion level of semiconductor memory | Yasushi Nagadomi, Kosuke Hatsuda, Shinichi Kanno | 2020-04-14 |