- 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: 153
10-year publication summary
|
11
|
12
|
13
|
11
|
10
|
10
|
10
|
5
|
5
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43063 |
19 |
| Mitsuba Corporation | 817 |
17 |
| Johnson Electric International AG | 375 |
9 |
| Mabuchi Motor Co., Ltd. | 206 |
7 |
| Valeo Equipements Electriques Moteur | 988 |
7 |
| Minebea Mitsumi Inc. | 1804 |
6 |
| Mitsubishi Electric Corporation | 46926 |
4 |
| Siemens AG | 24333 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
3 |
| MAHLE International GmbH | 2828 |
3 |
| Pierburg GmbH | 469 |
3 |
| Guangdong Zhaoqing L&V Co. Ltd. | 52 |
3 |
| Black & Decker, Inc. | 2404 |
2 |
| Continental Automotive GmbH | 4730 |
2 |
| Yamaha Motor Co., Ltd. | 2826 |
2 |
| Linear Labs, Inc. | 76 |
2 |
| Steering Solutions IP Holding Corporation | 946 |
2 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2175 |
2 |
| Mitsubishi Electric Mobility Corporation | 1099 |
2 |
| Hitachi Automotive Systems, Ltd. | 3955 |
1 |
| Other owners | 54 |