- 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: 292
10-year publication summary
|
18
|
18
|
32
|
33
|
23
|
20
|
31
|
27
|
30
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48018 |
23 |
| Nidec Corporation | 2817 |
14 |
| Hitachi Astemo, Ltd. | 6410 |
11 |
| Denso Corporation | 25534 |
10 |
| Robert Bosch GmbH | 44160 |
8 |
| Siemens AG | 24029 |
7 |
| Nidec elesys Corporation | 67 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
6 |
| Daikin Industries, Ltd. | 10499 |
6 |
| Hitachi Automotive Systems, Ltd. | 3954 |
5 |
| Rockwell Automation Technologies, Inc. | 2803 |
5 |
| ABB Schweiz AG | 7607 |
5 |
| FANUC Corporation | 7217 |
5 |
| Meidensha Corporation | 929 |
5 |
| Tula Technology, Inc. | 352 |
5 |
| Minebea Mitsumi Inc. | 1943 |
5 |
| Toyota Motor Corporation | 35772 |
4 |
| JTEKT Corporation | 2583 |
4 |
| NSK Ltd. | 2834 |
4 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1541 |
4 |
| Other owners | 149 |