Piezoelectric actuator for deformable lens
US-12523866-B1 · Jan 13, 2026 · US
Large signal circuits, e.g. final stages
Large signal circuits, e.g. final stages · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02N2/145 |
| Official title | {Large signal circuits, e.g. final stages} |
| Display label | Large signal circuits, e.g. final stages |
| Total patents | 40 |
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 | 4 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vibration driving device for a strong magnetic-field environment
US-12463560-B2 · Nov 4, 2025 · US
Driving-unit operation method and controller
US-12405440-B2 · Sep 2, 2025 · US
Control device that controls vibration device, and method of controlling vibration device
US-2024421727-A1 · Dec 19, 2024 · US
Piezoelectric based MEMS device with time sharing actuation and sensing circuitry
US-12001012-B2 · Jun 4, 2024 · US
Vibration actuator having plural vibrators and inductors
US-11728750-B2 · Aug 15, 2023 · US
Drive control device and drive control method that enable stable output to be obtained from vibration type actuator, vibration type drive device including vibration type actuator, and apparatus
US-11664748-B2 · May 30, 2023 · US
Vibration actuator and driving device for vibration actuator
US-11588417-B2 · Feb 21, 2023 · US
Driving-unit operation method and controller
US-2023024495-A1 · Jan 26, 2023 · US
Control method for piezoelectric drive device, piezoelectric drive device, and robot
US-11515812-B2 · Nov 29, 2022 · US
Piezoelectric based mems device with time sharing actuation and sensing circuitry
US-2022342205-A1 · Oct 27, 2022 · US
Drive control device, electronic equipment, drive control method, and computer readable medium
US-11476779-B2 · Oct 18, 2022 · US
Control method for piezoelectric driving device, piezoelectric driving device, and robot
US-11476403-B2 · Oct 18, 2022 · US
Vibration driving device
US-2022263432-A1 · Aug 18, 2022 · US
Piezoelectric driving device, piezoelectric motor, robot, electronic component conveyance apparatus, printer, and projector
US-11205974-B2 · Dec 21, 2021 · US
Piezoelectric drive device, robot and printer
US-11205975-B2 · Dec 21, 2021 · US
Control method for piezoelectric driving device, piezoelectric driving device, and robot
US-11205976-B2 · Dec 21, 2021 · US
Vibration drive device capable of switching between frequency control and pulse width control, electronic apparatus, and method of controlling vibration actuator
US-11139758-B2 · Oct 5, 2021 · US
Drive control device and drive control method that enable stable output to be obtained from vibration type actuator, vibration type drive device including vibration type actuator, and apparatus
US-2021234480-A1 · Jul 29, 2021 · US
Control method for piezoelectric drive device, piezoelectric drive device, and robot
US-2021194389-A1 · Jun 24, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02N2/145?
- CPC H02N2/145 is the Cooperative Patent Classification code for “Large signal circuits, e.g. final stages.”
- How many patents are filed under CPC H02N2/145 (Large signal circuits, e.g. final stages)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC H02N2/145 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).