Magnetic material, electronic component, and method for manufacturing magnetic material
US-2018374619-A1 · Dec 27, 2018 · US
made from sheets
made from sheets · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F3/02 |
| Official title | made from sheets |
| Display label | made from sheets |
| Total patents | 341 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 17 |
| 2017 | 25 |
| 2018 | 23 |
| 2019 | 18 |
| 2020 | 29 |
| 2021 | 30 |
| 2022 | 46 |
| 2023 | 49 |
| 2024 | 48 |
| 2025 | 44 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Soft magnetic ribbon for magnetic core, magnetic core, coil unit, and wireless power transmission unit
US-2018286550-A1 · Oct 4, 2018 · US
Iron core including first iron core block and second iron core block
US-2018277295-A1 · Sep 27, 2018 · US
Balancing multiple transmission lines forming a single phase of an electrical power distribution system
US-10014103-B2 · Jul 3, 2018 · US
Method for forming a nitrogenation barrier and machine formed using a body having the nitrogenation barrier
US-2018183279-A1 · Jun 28, 2018 · US
Method for fabricating magnetic core
US-2018166527-A1 · Jun 14, 2018 · US
Manufacturing method for rotor core and manufacturing method for motor core
US-2018152087-A1 · May 31, 2018 · US
Method of manufacturing stator for motor
US-2018152084-A1 · May 31, 2018 · US
Core for an electrical induction device
US-9941043-B2 · Apr 10, 2018 · US
Magnetic core, inductor, and method for fabricating the magnetic core
US-9893141-B2 · Feb 13, 2018 · US
Stress control in magnetic inductor stacks
US-2018005741-A1 · Jan 4, 2018 · US
Laminated Iron Core Structure and Transformer Including the Same
US-2017352466-A1 · Dec 7, 2017 · US
Soft magnetic laminated core and method of producing a laminated core for a stator and/or rotor of an electric machine
US-2017346351-A1 · Nov 30, 2017 · US
Material for laminated iron core, and method of manufacturing laminated iron core
US-2017342519-A1 · Nov 30, 2017 · US
Magnetic Flux Concentrator Structure and Method for Manufacturing the Same
US-2017338016-A1 · Nov 23, 2017 · US
Transformer core
US-9805852-B2 · Oct 31, 2017 · US
Method for manufacturing laminated iron core and apparatus for manufacturing laminated iron core
US-2017278628-A1 · Sep 28, 2017 · US
High acceleration actuator
US-9746665-B1 · Aug 29, 2017 · US
Line-frequency rotary transformer for computed tomography gantry
US-2017238405-A1 · Aug 17, 2017 · US
Core for an electrical induction device
US-2017213631-A1 · Jul 27, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F3/02?
- CPC H01F3/02 is the Cooperative Patent Classification code for “made from sheets.”
- How many patents are filed under CPC H01F3/02 (made from sheets)?
- Our database includes 341 publications tagged with this CPC code.
- Is patent activity under CPC H01F3/02 growing?
- Publication counts under this code: 48 in 2024 vs 44 in 2025 (latest complete years).