- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
Patent holdings for IPC class H02K 33/02
Total number of patents in this class: 696
10-year publication summary
|
34
|
65
|
88
|
68
|
64
|
74
|
70
|
47
|
62
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1929 |
58 |
| Goertek Inc. | 2652 |
53 |
| AAC Microtech (Changzhou) Co., Ltd. | 725 |
51 |
| AAC Technologies Pte. Ltd. | 1455 |
49 |
| Minebea Mitsumi Inc. | 1711 |
45 |
| LG Innotek Co., Ltd. | 7552 |
26 |
| Apple Inc. | 54527 |
18 |
| AAC Technologies (Nanjing) Co., Ltd. | 358 |
17 |
| Jahwa Electronics Co., Ltd. | 175 |
16 |
| Nidec Corporation | 2644 |
15 |
| Alps Alpine Co., Ltd. | 2062 |
14 |
| Nidec Sankyo Corporation | 1084 |
13 |
| LG Electronics Inc. | 72559 |
11 |
| Hamamatsu Photonics K.K. | 4390 |
11 |
| Mitsumi Electric Co., Ltd. | 1085 |
9 |
| CK Materials Lab Co., Ltd. | 106 |
8 |
| Nidec Copal Corporation | 271 |
7 |
| Partron Co., Ltd. | 141 |
7 |
| Shanghai Shift Electrics Co., Ltd. | 76 |
7 |
| TDK Taiwan Corp. | 798 |
7 |
| Other owners | 254 |