- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 23/00 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors
Patent holdings for IPC class H02K 23/00
Total number of patents in this class: 104
10-year publication summary
|
11
|
7
|
8
|
4
|
7
|
7
|
2
|
2
|
2
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
11 |
| Mitsuba Corporation | 822 |
11 |
| Mabuchi Motor Co., Ltd. | 230 |
5 |
| Denso Corporation | 25513 |
4 |
| Nidec Corporation | 2806 |
4 |
| Hitachi Automotive Systems, Ltd. | 3954 |
3 |
| Mitsubishi Electric Corporation | 47971 |
3 |
| IoT Technologies LLC | 30 |
3 |
| Panasonic Corporation | 19060 |
2 |
| Littelfuse France SAS | 5 |
2 |
| Nanjing Chervon Industry Co., Ltd. | 1276 |
2 |
| Littelfuse Electronics (Shanghai) Co., Ltd. | 23 |
2 |
| Schlumberger Canada Limited | 7606 |
1 |
| Schlumberger Technology B.v. | 5298 |
1 |
| Schlumberger Holdings Limited | 2702 |
1 |
| Honda Motor Co., Ltd. | 26008 |
1 |
| Siemens AG | 24033 |
1 |
| Canon Inc. | 43768 |
1 |
| Robert Bosch GmbH | 44128 |
1 |
| Nissan Motor Co., Ltd. | 12947 |
1 |
| Other owners | 44 |