- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
Patent holdings for IPC class H02P 21/05
Total number of patents in this class: 377
10-year publication summary
17
|
20
|
16
|
20
|
48
|
45
|
46
|
43
|
44
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
48 |
Denso Corporation | 23338 |
21 |
Nidec Corporation | 2579 |
18 |
Robert Bosch GmbH | 40953 |
15 |
NSK Ltd. | 2719 |
15 |
Hitachi Astemo, Ltd. | 5618 |
15 |
Daikin Industries, Ltd. | 9495 |
11 |
RENAULT s.a.s. | 5674 |
10 |
Nissan Motor Co., Ltd. | 12249 |
8 |
Siemens Gamesa Renewable Energy A/S | 1647 |
7 |
TRW Limited | 266 |
6 |
Siemens AG | 24990 |
5 |
Hitachi, Ltd. | 16452 |
5 |
Hyundai Motor Company | 19021 |
5 |
Electro Standards Laboratories | 25 |
5 |
Jiangsu University | 950 |
5 |
Steering Solutions IP Holding Corporation | 847 |
5 |
Schaeffler Technologies AG & Co. KG | 8880 |
4 |
AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1827 |
4 |
AAC Technologies (Nanjing) Co., Ltd. | 242 |
4 |
Other owners | 161 |