Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic
US-2017365772-A1 · Dec 21, 2017 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01L41/43 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 143 |
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 | 23 |
| 2016 | 15 |
| 2017 | 25 |
| 2018 | 21 |
| 2019 | 21 |
| 2020 | 10 |
| 2021 | 14 |
| 2022 | 11 |
| 2023 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piezoelectric element and piezoelectric sensor
US-2017363409-A1 · Dec 21, 2017 · US
Manufacturing method for piezoelectric ceramics
US-9842985-B2 · Dec 12, 2017 · US
Lead-free piezoelectric ceramic composition, method for producing same, piezoelectric element using lead-free piezoelectric ceramic composition, ultrasonic processing machine, ultrasonic drive device, and sensing device
US-9828296-B2 · Nov 28, 2017 · US
Piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
US-9825213-B2 · Nov 21, 2017 · US
Piezoelectric composition and method for producing same, piezoelectric element/non-lead piezoelectric element and method for producing same, ultrasonic probe and diagnostic imaging device
US-9812633-B2 · Nov 7, 2017 · US
Piezoelectric ceramic, method of manufacturing same, and piezoelectric ceramic speaker using same
US-9786833-B2 · Oct 10, 2017 · US
Ceramic material, method for producing the ceramic material, and electroceramic component comprising the ceramic material
US-9780296-B2 · Oct 3, 2017 · US
Processing method for grain-oriented lead-free piezoelectric Na0.5Bi0.5TiO3—BaTiO3 ceramics exhibiting giant performance
US-9773967-B2 · Sep 26, 2017 · US
NBT based lead-free piezoelectric materials for high power applications
US-RE46445-E · Jun 20, 2017 · US
Piezoelectric material, piezoelectric element, and electronic device
US-9673379-B2 · Jun 6, 2017 · US
Piezoelectric material and piezoelectric element using the same, and electronic apparatus using the piezoelectronic element
US-9660174-B2 · May 23, 2017 · US
Lead-free piezoelectric ceramic composition, piezoelectric element using the same, and method of manufacturing lead-free piezoelectric ceramic composition
US-2017141293-A1 · May 18, 2017 · US
Lead-free piezoelectric ceramic composition, piezoelectric element using the same, and method of manufacturing lead-free piezoelectric ceramic composition
US-2017141292-A1 · May 18, 2017 · US
Piezoelectric oriented ceramics and method of manufacturing the same
US-9647198-B2 · May 9, 2017 · US
Piezoelectric ceramics and method for manufacturing the same
US-9647197-B2 · May 9, 2017 · US
Piezoelectric ceramic method for making the same piezoelectric element liquid discharge head ultrasonic motor and dust cleaner
US-2017107155-A1 · Apr 20, 2017 · US
Piezoelectric ceramic, method for making same, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaner
US-9614140-B2 · Apr 4, 2017 · US
Piezoelectric ceramic composition constituted by Ag-segregated sintered body of zirconate-titanate type perovskite composition
US-9614142-B2 · Apr 4, 2017 · US
Piezoceramic multi-layer element
US-9598319-B2 · Mar 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L41/43?
- CPC H01L41/43 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L41/43 (Electricity)?
- Our database includes 143 publications tagged with this CPC code.
- Is patent activity under CPC H01L41/43 growing?
- Publication counts under this code: 11 in 2022 vs 3 in 2023 (latest complete years).