- 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: 146
10-year publication summary
|
12
|
13
|
11
|
10
|
10
|
10
|
5
|
5
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44445 |
17 |
| Mitsuba Corporation | 818 |
17 |
| Johnson Electric International AG | 380 |
9 |
| Mabuchi Motor Co., Ltd. | 233 |
7 |
| Valeo Equipements Electriques Moteur | 931 |
7 |
| Mitsubishi Electric Corporation | 48546 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 34724 |
4 |
| Siemens AG | 23948 |
3 |
| MAHLE International GmbH | 2934 |
3 |
| Pierburg GmbH | 479 |
3 |
| Minebea Mitsumi Inc. | 2013 |
3 |
| Guangdong Zhaoqing L&V Co. Ltd. | 52 |
3 |
| Black & Decker, Inc. | 2513 |
2 |
| Yamaha Motor Co., Ltd. | 2840 |
2 |
| Linear Labs, Inc. | 75 |
2 |
| Steering Solutions IP Holding Corporation | 990 |
2 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2261 |
2 |
| Mitsubishi Electric Mobility Corporation | 1215 |
2 |
| Hitachi Automotive Systems, Ltd. | 3954 |
1 |
| Denso Corporation | 25936 |
1 |
| Other owners | 52 |