- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 21/22 - Synchronous motors having permanent magnets; Synchronous 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: 941
10-year publication summary
|
63
|
73
|
94
|
117
|
141
|
103
|
86
|
81
|
75
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 23692 |
91 |
| Nidec Corporation | 2594 |
42 |
| LG Electronics Inc. | 70831 |
25 |
| LG Innotek Co., Ltd. | 7203 |
20 |
| Minebea Mitsumi Inc. | 1609 |
17 |
| Mitsuba Corporation | 807 |
16 |
| Samsung Electronics Co., Ltd. | 138320 |
14 |
| Robert Bosch GmbH | 41695 |
14 |
| Densotrim Co., Ltd. | 50 |
14 |
| Daikin Industries, Ltd. | 9766 |
13 |
| NTN Corporation | 4980 |
13 |
| Valeo Systemes Thermiques | 2593 |
13 |
| Siemens Gamesa Renewable Energy A/S | 1784 |
11 |
| Mitsubishi Electric Corporation | 44678 |
10 |
| Whirlpool Corporation | 4323 |
10 |
| NSK Ltd. | 2728 |
10 |
| Makita Corporation | 2400 |
9 |
| Evr Motors Ltd. | 21 |
9 |
| Amotech Co., Ltd. | 497 |
8 |
| Johnson Electric International AG | 368 |
8 |
| Other owners | 574 |