- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
Patent holdings for IPC class H02K 21/22
Total number of patents in this class: 1018
10-year publication summary
|
70
|
94
|
116
|
140
|
103
|
87
|
83
|
76
|
83
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 24983 |
91 |
| Nidec Corporation | 2731 |
46 |
| LG Electronics Inc. | 74388 |
28 |
| Minebea Mitsumi Inc. | 1844 |
23 |
| LG Innotek Co., Ltd. | 8037 |
21 |
| Mitsuba Corporation | 819 |
17 |
| Samsung Electronics Co., Ltd. | 151485 |
15 |
| Robert Bosch GmbH | 43294 |
14 |
| Daikin Industries, Ltd. | 10212 |
14 |
| Siemens Gamesa Renewable Energy A/S | 1917 |
14 |
| Densotrim Co., Ltd. | 50 |
14 |
| Valeo Systemes Thermiques | 2793 |
13 |
| NTN Corporation | 4944 |
11 |
| Mitsubishi Electric Corporation | 47352 |
10 |
| Whirlpool Corporation | 4519 |
10 |
| NSK Ltd. | 2822 |
10 |
| New Motech Co., Ltd. | 182 |
10 |
| Makita Corporation | 2497 |
9 |
| Amotech Co., Ltd. | 536 |
9 |
| Evr Motors Ltd. | 24 |
9 |
| Other owners | 630 |