Voice coil motor
US-2023384653-A1 · Nov 30, 2023 · US
with stationary armatures and rotating magnets
with stationary armatures and rotating magnets · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K37/12 |
| Official title | with stationary armatures and rotating magnets |
| Display label | with stationary armatures and rotating magnets |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 14 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 9 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Step actuator
US-11799348-B2 · Oct 24, 2023 · US
Voice coil motor
US-11768422-B2 · Sep 26, 2023 · US
Pump with high torque drive
US-11473576-B2 · Oct 18, 2022 · US
Stator and motor
US-2022231549-A1 · Jul 21, 2022 · US
Stator and motor
US-2022231563-A1 · Jul 21, 2022 · US
Pump with high torque drive
US-2022056909-A1 · Feb 24, 2022 · US
Motor unit and motor unit manufacturing method
US-11239735-B2 · Feb 1, 2022 · US
Pump with high torque drive
US-11193486-B2 · Dec 7, 2021 · US
Voice coil motor
US-2021341817-A1 · Nov 4, 2021 · US
Pump with high torque drive
US-2021301819-A1 · Sep 30, 2021 · US
Voice coil motor
US-11099458-B2 · Aug 24, 2021 · US
Belt-driven rotary cam elevator mechanism for reduced-head data storage device
US-10978100-B1 · Apr 13, 2021 · US
Low-profile ball screw cam elevator mechanism for cold storage data storage device
US-10902871-B2 · Jan 26, 2021 · US
In-pivot stepper motor for ball screw cam elevator mechanism for cold storage data storage device
US-10811044-B2 · Oct 20, 2020 · US
Motor unit and motor unit manufacturing method
US-2020295642-A1 · Sep 17, 2020 · US
Motor control circuit, motor control device, actuator and control method for stepping motor
US-10742147-B2 · Aug 11, 2020 · US
Motor control circuit, motor control device, actuator and control method for stepping motor
US-10742146-B2 · Aug 11, 2020 · US
Step actuator
US-2020251953-A1 · Aug 6, 2020 · US
Step actuator
US-10673299-B2 · Jun 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K37/12?
- CPC H02K37/12 is the Cooperative Patent Classification code for “with stationary armatures and rotating magnets.”
- How many patents are filed under CPC H02K37/12 (with stationary armatures and rotating magnets)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC H02K37/12 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).