- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 8/02 - Arrangements for controlling dynamo-electric motors rotating step by step specially adapted for single-phase or bi-pole stepper motors, e.g. watch-motors, clock-motors
Patent holdings for IPC class H02P 8/02
Total number of patents in this class: 72
10-year publication summary
|
2
|
7
|
11
|
7
|
6
|
15
|
6
|
2
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| citizen Watch Co., Ltd. | 1062 |
19 |
| Seiko Instruments Inc. | 660 |
12 |
| Seiko Epson Corporation | 18724 |
10 |
| Casio Computer Co., Ltd. | 3343 |
10 |
| citizen Holdings Co., Ltd. | 332 |
5 |
| EM Microelectronic-Marin SA | 227 |
3 |
| Minebea Mitsumi Inc. | 1461 |
2 |
| Bereva S.r.l. | 11 |
2 |
| Texas Instruments Incorporated | 19376 |
1 |
| Texas Instruments Japan, Ltd. | 1656 |
1 |
| Ricoh Company, Ltd. | 13266 |
1 |
| Infineon Technologies AG | 8189 |
1 |
| Bühler Motor GmbH | 110 |
1 |
| ETA SA Manufacture Horlogere Suisse | 638 |
1 |
| Long-time-liner Conture Make-up GmbH | 9 |
1 |
| Protective Energy Economizer Technology | 6 |
1 |
| Sieko Epson Corporation | 6 |
1 |
| Other owners | 0 |