Processing of anisotropic permanent magnet without magnetic field
US-11948733-B2 · Apr 2, 2024 · US
in the form of particles, e.g. rapid quenched powders or ribbon flakes
in the form of particles, e.g. rapid quenched powders or ribbon flakes · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F1/0551 |
| Official title | {in the form of particles, e.g. rapid quenched powders or ribbon flakes} |
| Display label | in the form of particles, e.g. rapid quenched powders or ribbon flakes |
| Total patents | 118 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 12 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 11 |
| 2021 | 11 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 16 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic Powder and Method of Preparing Magnetic Powder
US-2021151227-A1 · May 20, 2021 · US
Permanent magnet, motor, and generator
US-10770208-B2 · Sep 8, 2020 · US
Rare-earth magnet and method for manufacturing same
US-10748684-B2 · Aug 18, 2020 · US
Ferromagnetic Alloy and Method of Manufacturing the Ferromagnetic Alloy
US-2020227186-A1 · Jul 16, 2020 · US
Molding device, metal mold, method of manufacturing magnet roll and method of magnetizing magnet roll
US-10698344-B2 · Jun 30, 2020 · US
Sm-Fe-N magnet material and Sm-Fe-N bonded magnet
US-10658095-B2 · May 19, 2020 · US
Bonded magnet and method of preparing the same
US-2020105445-A1 · Apr 2, 2020 · US
Magnetic core and coil component
US-10586646-B2 · Mar 10, 2020 · US
Samarium cobalt and neodymium iron boride magnets and methods of manufacturing same
US-2020075237-A1 · Mar 5, 2020 · US
L10-FeNi MAGNETIC POWDER AND BOND MAGNET
US-2020066430-A1 · Feb 27, 2020 · US
Iron-based nanoparticles and grains
US-2020038951-A1 · Feb 6, 2020 · US
Flaky magnetic metal particles, pressed powder material, rotating electric machine, motor, and generator
US-2020035391-A1 · Jan 30, 2020 · US
Rare-earth magnet and method for manufacturing same
US-2019362870-A1 · Nov 28, 2019 · US
Rare-earth magnet and method for manufacturing same
US-10468165-B2 · Nov 5, 2019 · US
Permanent magnet and permanent magnet powder
US-2019333660-A1 · Oct 31, 2019 · US
R-t-b based permanent magnet
US-2019304638-A1 · Oct 3, 2019 · US
Magnetic core and coil component
US-2019272937-A1 · Sep 5, 2019 · US
R-T-B based sintered magnet and motor
US-10388441-B2 · Aug 20, 2019 · US
Permanent magnet, rotary electrical machine, and vehicle
US-2019189313-A1 · Jun 20, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F1/0551?
- CPC H01F1/0551 is the Cooperative Patent Classification code for “in the form of particles, e.g. rapid quenched powders or ribbon flakes.”
- How many patents are filed under CPC H01F1/0551 (in the form of particles, e.g. rapid quenched powders or ribbon flakes)?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC H01F1/0551 growing?
- Publication counts under this code: 16 in 2024 vs 7 in 2025 (latest complete years).