METHOD OF PRODUCING PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER AND PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER
US-2026038717-A1 · Feb 5, 2026 · US
with a protective layer
with a protective layer · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F1/061 |
| Official title | {with a protective layer} |
| Display label | with a protective layer |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Iron-based nanoparticles and grains
US-12512238-B2 · Dec 30, 2025 · US
Method of producing phosphate-coated SmFeN-based anisotropic magnetic powder and phosphate-coated SmFeN-based anisotropic magnetic powder
US-12462958-B2 · Nov 4, 2025 · US
Method for producing magnet powder and sintered magnet produced by the same
US-12394546-B2 · Aug 19, 2025 · US
Rare earth magnet and method for manufacturing the same
US-2025249504-A1 · Aug 7, 2025 · US
Method of producing magnetic powder, magnetic material for magnetic field amplification, and magnetic material for hyper-high frequency absorption
US-2025014791-A1 · Jan 9, 2025 · US
Process for the Production of Nano-Coated Ferromagnetic Materials
US-2024412905-A1 · Dec 12, 2024 · US
Core-Shell Nanodisc Synthesis and Applications to Single-Particle Targeted Magnetothermal Control of Biological Signaling
US-2024347239-A1 · Oct 17, 2024 · US
Magnetic particles, dust core, and coil component
US-2024282503-A1 · Aug 22, 2024 · US
Magnetic particles, dust core, and coil component
US-12009137-B2 · Jun 11, 2024 · US
Method of producing rare earth magnetic powder and rare earth magnetic powder
US-2024062936-A1 · Feb 22, 2024 · US
Iron-based nanoparticles and grains
US-2024055165-A1 · Feb 15, 2024 · US
PRODUCTION METHOD FOR PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER AND PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER
US-2024006101-A1 · Jan 4, 2024 · US
Iron-based nanoparticles and grains
US-11837393-B2 · Dec 5, 2023 · US
Coated rare earth-iron-nitrogen-based magnetic powder, production method thereof, magnetic material for magnetic field amplification, and magnetic material for hyper-high frequency absorption
US-2023386710-A1 · Nov 30, 2023 · US
Thermally stable, cladded permanent magnets, and compositions and methods for making the same
US-2023282398-A1 · Sep 7, 2023 · US
Thermally stable, cladded permanent magnets, and compositions and methods for making the same
US-2023282397-A1 · Sep 7, 2023 · US
METHOD OF PRODUCING PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER AND PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER
US-2023207166-A1 · Jun 29, 2023 · US
Preservation of strain in iron nitride magnet
US-11581113-B2 · Feb 14, 2023 · US
Magnetic powder and coil component comprising the same
US-11581114-B2 · Feb 14, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F1/061?
- CPC H01F1/061 is the Cooperative Patent Classification code for “with a protective layer.”
- How many patents are filed under CPC H01F1/061 (with a protective layer)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC H01F1/061 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).