- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 23/04 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
Patent holdings for IPC class H02K 23/04
Total number of patents in this class: 154
10-year publication summary
|
11
|
12
|
13
|
11
|
10
|
10
|
10
|
5
|
5
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42677 |
19 |
| Mitsuba Corporation | 808 |
18 |
| Johnson Electric International AG | 373 |
9 |
| Mabuchi Motor Co., Ltd. | 195 |
7 |
| Valeo Equipements Electriques Moteur | 997 |
7 |
| Minebea Mitsumi Inc. | 1744 |
6 |
| Siemens AG | 24461 |
4 |
| Mitsubishi Electric Corporation | 46160 |
4 |
| MAHLE International GmbH | 2777 |
3 |
| Pierburg GmbH | 469 |
3 |
| Guangdong Zhaoqing L&V Co. Ltd. | 52 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31515 |
2 |
| Black & Decker, Inc. | 2411 |
2 |
| Continental Automotive GmbH | 4775 |
2 |
| Yamaha Motor Co., Ltd. | 2815 |
2 |
| Linear Labs, Inc. | 75 |
2 |
| Steering Solutions IP Holding Corporation | 924 |
2 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2155 |
2 |
| Mitsubishi Electric Mobility Corporation | 1066 |
2 |
| Hitachi Automotive Systems, Ltd. | 3957 |
1 |
| Other owners | 54 |