- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/8239 - Memory structures
Patent holdings for IPC class H01L 21/8239
Total number of patents in this class: 665
10-year publication summary
|
24
|
75
|
125
|
95
|
75
|
45
|
38
|
3
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6784 |
115 |
| Semiconductor Energy Laboratory Co., Ltd. | 11617 |
69 |
| Sony Semiconductor Solutions Corporation | 11087 |
60 |
| Micron Technology, Inc. | 27215 |
57 |
| Tohoku University | 2885 |
36 |
| Samsung Electronics Co., Ltd. | 152016 |
23 |
| NEC Corporation | 36475 |
23 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46735 |
23 |
| Sandisk Technologies Inc. | 5286 |
14 |
| Unisantis Electronics Singapore Pte. Ltd. | 659 |
13 |
| Renesas Electronics Corporation | 5887 |
11 |
| National Institute of Advanced Industrial Science and Technology | 3794 |
11 |
| Kioxia Corporation | 10555 |
11 |
| SK Hynix Inc. | 11969 |
10 |
| Macronix International Co., Ltd. | 2525 |
10 |
| Hewlett-Packard Development Company, L.P. | 25446 |
9 |
| Changxin Memory Technologies, Inc. | 4924 |
8 |
| Institute of Microelectronics, Chinese Academy of Sciences | 1414 |
6 |
| International Business Machines Corporation | 62002 |
5 |
| Sony Corporation | 30568 |
4 |
| Other owners | 147 |