Memory device with memory strings using variable resistance memory regions
US-2025344407-A1 · Nov 6, 2025 · US
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Ogiwara Ryu patents
Ogiwara Ryu is listed as an inventor on 58 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ogiwara Ryu |
| Total patents | 58 |
| First publication | Jan 29, 2015 |
| Latest publication | Nov 6, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Memory device with memory strings using variable resistance memory regions
US-12389610-B2 · Aug 12, 2025 · US
Semiconductor memory device
US-12277989-B2 · Apr 15, 2025 · US
Memory device
US-2024321352-A1 · Sep 26, 2024 · US
Memory device and method of manufacturing memory device
US-12069872-B2 · Aug 20, 2024 · US
Semiconductor memory device
US-2024038279-A1 · Feb 1, 2024 · US
Memory device and method of manufacturing memory device
US-2023413584-A1 · Dec 21, 2023 · US
Memory device and method of manufacturing memory device
US-11765916-B2 · Sep 19, 2023 · US
Memory device
US-11744088-B2 · Aug 29, 2023 · US
Memory device having sense amplifier including plural sense circuits for sensing a voltage of a bit line in a read operation
US-11721371-B2 · Aug 8, 2023 · US
Recent patents
Latest publications not already listed above.
Memory device
US-11651818-B2 · May 16, 2023 · US
Memory device
US-11615840-B2 · Mar 28, 2023 · US
Memory device with memory strings using variable resistance memory regions
US-2022367568-A1 · Nov 17, 2022 · US
Memory device
US-2022109024-A1 · Apr 7, 2022 · US
Memory device
US-2022108729-A1 · Apr 7, 2022 · US
Memory device
US-2022028452-A1 · Jan 27, 2022 · US
Memory device and method of manufacturing memory device
US-2021399049-A1 · Dec 23, 2021 · US
Memory device
US-2021287733-A1 · Sep 16, 2021 · US
Memory device
US-11120866-B1 · Sep 14, 2021 · US
Memory device
US-2021090647-A1 · Mar 25, 2021 · US
Nonvolatile memory device including memory element in equal cross-sectional area of word lines and bit lines
US-10950278-B2 · Mar 16, 2021 · US
Memory device
US-10923189-B2 · Feb 16, 2021 · US
Memory device
US-2020403035-A1 · Dec 24, 2020 · US
Storage device
US-10803932-B1 · Oct 13, 2020 · US
Storage device
US-2020303001-A1 · Sep 24, 2020 · US
Nonvolatile memory device
US-2020302975-A1 · Sep 24, 2020 · US
Memory device
US-10672468-B2 · Jun 2, 2020 · US
Memory device
US-2020098426-A1 · Mar 26, 2020 · US
Resistance change memory device
US-10490271-B2 · Nov 26, 2019 · US
Memory device
US-2019295637-A1 · Sep 26, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Kioxia Corp | 21 |
| Toshiba Kk | 20 |
| Toshiba Memory Corp | 17 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G11C13/004 | 40 |
| G11C13/0004 | 36 |
| G11C13/0069 | 35 |
| G11C13/0026 | 34 |
| G11C2213/79 | 29 |