MnZn-FERRITE AND ITS PRODUCTION METHOD
US-2017352455-A1 · Dec 7, 2017 · US
Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4 · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F1/344 |
| Official title | {Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4} |
| Display label | Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4 |
| Total patents | 478 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 32 |
| 2017 | 32 |
| 2018 | 22 |
| 2019 | 35 |
| 2020 | 45 |
| 2021 | 50 |
| 2022 | 67 |
| 2023 | 76 |
| 2024 | 47 |
| 2025 | 49 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ferrite sintered plate and ferrite sintered sheet
US-9824802-B2 · Nov 21, 2017 · US
Composite ferrite composition and electronic component
US-9824804-B2 · Nov 21, 2017 · US
Common mode filter
US-2017330675-A1 · Nov 16, 2017 · US
Magneto-dielectric polymer nanocomposites
US-2017263355-A1 · Sep 14, 2017 · US
Coil type unit for wireless power transmission, wireless power transmission device, electronic device and manufacturing method of coil type unit for wireless power transmission
US-9761371-B2 · Sep 12, 2017 · US
Ceramic electronic component and method for producing ceramic electronic component
US-9741489-B2 · Aug 22, 2017 · US
Oxide ceramic and ceramic electronic component
US-2017069413-A1 · Mar 9, 2017 · US
Iron-based soft magnetic powder and production method thereof
US-9589712-B2 · Mar 7, 2017 · US
Laminated coil component
US-2017025217-A1 · Jan 26, 2017 · US
Ferrite composition and electronic component
US-9536645-B2 · Jan 3, 2017 · US
Method for manufacturing Sr ferrite particle for sintered magnet, method for using Sr ferrite particle, Sr ferrite sintered magnet and method for manufacturing same, and motor and generator
US-9530548-B2 · Dec 27, 2016 · US
Compositions and materials for electronic applications
US-9505632-B2 · Nov 29, 2016 · US
Process for preparing an electrode composition or composition with magnetic properties, mixture and composition obtained by means of said process and said electrode
US-2016340476-A1 · Nov 24, 2016 · US
Development of nickel ferrites and methods for preparing same using steel industry by-product iron oxide fines
US-2016326010-A1 · Nov 10, 2016 · US
Laminated coil component
US-9490060-B2 · Nov 8, 2016 · US
Development of nickel-zinc ferrites and methods for preparing same using iron-oxide byproducts of steel industry
US-2016322140-A1 · Nov 3, 2016 · US
Nickel-zinc ferrites and methods for preparing same using fine iron oxide and bag house dust
US-2016322141-A1 · Nov 3, 2016 · US
Development of nanocrystalline magnesium ferrites and methods for preparing same from steel rolling mill by-product millscale
US-2016322142-A1 · Nov 3, 2016 · US
Ferrite composition and electronic component
US-2016300651-A1 · Oct 13, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F1/344?
- CPC H01F1/344 is the Cooperative Patent Classification code for “Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4.”
- How many patents are filed under CPC H01F1/344 (Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4)?
- Our database includes 478 publications tagged with this CPC code.
- Is patent activity under CPC H01F1/344 growing?
- Publication counts under this code: 47 in 2024 vs 49 in 2025 (latest complete years).