Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer
US-12455516-B2 · Oct 28, 2025 · US
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containing magnesium
containing magnesium · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B35/2625 |
| Official title | {containing magnesium} |
| Display label | containing magnesium |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 1 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12436480-B2 · Oct 7, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12386281-B2 · Aug 12, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12253825-B2 · Mar 18, 2025 · US
Ferrite sintered body and coil component
US-2024051876-A1 · Feb 15, 2024 · US
Ferrite sintered body and coil component
US-11814318-B2 · Nov 14, 2023 · US
Novel multifferoic r-type hexaferrite, a composite and an article comprising the r-type hexaferrite, and a method of making the same
US-2023352222-A1 · Nov 2, 2023 · US
Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer
US-2023296999-A1 · Sep 21, 2023 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-2023152726-A1 · May 18, 2023 · US
Ceramic composition and wire-wound coil component
US-2023090818-A1 · Mar 23, 2023 · US
Ruthenium doped Z-type hexaferrite
US-11476021-B2 · Oct 18, 2022 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-2022155701-A1 · May 19, 2022 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-2022155702-A1 · May 19, 2022 · US
Manganese Ferrite Nanoparticles for Use as MRI Contrast Agents and Magnetohypothermia Agents
US-2022118114-A1 · Apr 21, 2022 · US
Ferrite sintered body and coil component
US-2022098114-A1 · Mar 31, 2022 · US
Ruthenium doped z-type hexaferrite
US-2021043346-A1 · Feb 11, 2021 · US
Oxide ceramic and ceramic electronic component
US-10497499-B2 · Dec 3, 2019 · US
Wave-absorbing materials and methods for preparing the same
US-10308555-B2 · Jun 4, 2019 · US
Oxide ceramic and ceramic electronic component
US-2017069413-A1 · Mar 9, 2017 · US
Molded ferrite sheet, sintered ferrite substrate and antenna module
US-9394204-B2 · Jul 19, 2016 · US