- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 23/04 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
Patent holdings for IPC class H02P 23/04
Total number of patents in this class: 284
10-year publication summary
|
18
|
16
|
32
|
33
|
23
|
20
|
30
|
27
|
28
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47602 |
23 |
| Nidec Corporation | 2765 |
14 |
| Hitachi Astemo, Ltd. | 6409 |
11 |
| Denso Corporation | 25183 |
10 |
| Robert Bosch GmbH | 43587 |
8 |
| Siemens AG | 24200 |
7 |
| Nidec elesys Corporation | 71 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 33507 |
6 |
| Daikin Industries, Ltd. | 10384 |
6 |
| Hitachi Automotive Systems, Ltd. | 3954 |
5 |
| Rockwell Automation Technologies, Inc. | 2736 |
5 |
| ABB Schweiz AG | 7441 |
5 |
| Meidensha Corporation | 929 |
5 |
| Tula Technology, Inc. | 350 |
5 |
| Minebea Mitsumi Inc. | 1879 |
5 |
| Toyota Motor Corporation | 34633 |
4 |
| JTEKT Corporation | 2554 |
4 |
| NSK Ltd. | 2824 |
4 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1519 |
4 |
| Max Co., Ltd. | 840 |
4 |
| Other owners | 142 |