Increased resonant frequency potassium-doped hexagonal ferrite
US-2018374616-A1 · Dec 27, 2018 · US
in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)}
in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F1/36 |
| Official title | in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)} |
| Display label | in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)} |
| Total patents | 212 |
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 | 11 |
| 2016 | 16 |
| 2017 | 14 |
| 2018 | 20 |
| 2019 | 26 |
| 2020 | 22 |
| 2021 | 29 |
| 2022 | 18 |
| 2023 | 28 |
| 2024 | 16 |
| 2025 | 8 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inductor element
US-2018322998-A1 · Nov 8, 2018 · US
Magnetic sheet and common mode filter including the same
US-10102959-B2 · Oct 16, 2018 · US
Semiconductor apparatus and composite sheet
US-2018240758-A1 · Aug 23, 2018 · US
Magnetodielectric Y-phase strontium hexagonal ferrite materials formed by sodium substitution
US-10049796-B2 · Aug 14, 2018 · US
Layered electronic component
US-2018218822-A1 · Aug 2, 2018 · US
Increased resonant frequency alkali-doped Y-phase hexagonal ferrites
US-10032547-B2 · Jul 24, 2018 · US
Inductor element and method of manufacturing the same
US-2018204661-A1 · Jul 19, 2018 · US
Increased resonant frequency potassium-doped hexagonal ferrite
US-10026530-B2 · Jul 17, 2018 · US
Ferrite laminate and noise suppression sheet
US-2018199474-A1 · Jul 12, 2018 · US
Powder mixture for powder magnetic core, and powder magnetic core
US-2018182520-A1 · Jun 28, 2018 · US
Coil device
US-10002705-B2 · Jun 19, 2018 · US
Coil component
US-2018166199-A1 · Jun 14, 2018 · US
Polymer-encapsulated magnetic nanoparticles
US-2018151278-A1 · May 31, 2018 · US
Coil device
US-2018130597-A1 · May 10, 2018 · US
System in package device including inductor
US-2018082930-A1 · Mar 22, 2018 · US
Nickel ferrite nanoparticle composite and method for preparing same
US-9919932-B2 · Mar 20, 2018 · US
Magnetic powder and inductor containing the same
US-2018068775-A1 · Mar 8, 2018 · US
Coil component
US-2018012697-A1 · Jan 11, 2018 · US
Magnetic filler
US-2017369672-A1 · Dec 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F1/36?
- CPC H01F1/36 is the Cooperative Patent Classification code for “in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)}.”
- How many patents are filed under CPC H01F1/36 (in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)})?
- Our database includes 212 publications tagged with this CPC code.
- Is patent activity under CPC H01F1/36 growing?
- Publication counts under this code: 16 in 2024 vs 8 in 2025 (latest complete years).