- 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: 729
10-year publication summary
|
65
|
88
|
68
|
64
|
74
|
71
|
49
|
64
|
39
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AAC Microtech (Changzhou) Co., Ltd. | 1023 |
65 |
| Goertek Inc. | 2821 |
60 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 2023 |
59 |
| AAC Technologies Pte. Ltd. | 1505 |
50 |
| Minebea Mitsumi Inc. | 1943 |
48 |
| LG Innotek Co., Ltd. | 8466 |
25 |
| Apple Inc. | 58742 |
20 |
| AAC Technologies (Nanjing) Co., Ltd. | 363 |
17 |
| Jahwa Electronics Co., Ltd. | 202 |
16 |
| Nidec Corporation | 2817 |
15 |
| Alps Alpine Co., Ltd. | 2306 |
14 |
| Nidec Sankyo Corporation | 1054 |
13 |
| LG Electronics Inc. | 75694 |
11 |
| Hamamatsu Photonics K.K. | 4681 |
11 |
| Mitsumi Electric Co., Ltd. | 1135 |
9 |
| CK Materials Lab Co., Ltd. | 110 |
8 |
| Actutek Corporation | 851 |
8 |
| Nidec Copal Corporation | 269 |
7 |
| Partron Co., Ltd. | 152 |
7 |
| Braun GmbH | 1379 |
6 |
| Other owners | 260 |