H01F 41/0246
Manufacturing of magnetic circuits by moulding or by pressing powder
Official title: {Manufacturing of magnetic circuits by moulding or by pressing powder (magnetic cores made by moulding or by pressing powder H01F27/255; soft magnetic particles H01F1/20, H01F1/36)}
H01F41/0246 (Manufacturing of magnetic circuits by moulding or by pressing powder) appears on 901 US grants and 1,270 published applications in this corpus.
Search patents in H01F- Granted patents
- 901
- Published applications
- 1,270
- Assignees
- 374
- Inventors
- 2,079
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 15 | 0 |
| 2001 | 11 | 5 |
| 2002 | 10 | 27 |
| 2003 | 29 | 26 |
| 2004 | 21 | 29 |
| 2005 | 11 | 25 |
| 2006 | 13 | 21 |
| 2007 | 17 | 29 |
| 2008 | 11 | 37 |
| 2009 | 15 | 35 |
| 2010 | 20 | 58 |
| 2011 | 20 | 41 |
| 2012 | 32 | 39 |
| 2013 | 36 | 60 |
| 2014 | 31 | 47 |
| 2015 | 21 | 46 |
| 2016 | 37 | 45 |
| 2017 | 27 | 57 |
| 2018 | 31 | 72 |
| 2019 | 41 | 68 |
| 2020 | 62 | 90 |
| 2021 | 47 | 110 |
| 2022 | 49 | 78 |
| 2023 | 89 | 73 |
| 2024 | 78 | 77 |
| 2025 | 44 | 48 |
| 2026 | 36 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manufacturing method of coil component and coil component29 Sep 2026US 12,746,712 B2Sumida Corporation
- Metal magnetic particle, inductor, method for manufacturing metal magnetic particle, and method for manufacturing metal magnetic core22 Sep 2026US 12,744,151 B2Murata Manufacturing Co., Ltd.
- Power inductor, preparation method of power inductor, and system in package module15 Sep 2026US 12,738,407 B2Huawei Digital Power Technologies Co., Ltd.
- Coil component8 Sep 2026US 12,731,724 B2Murata Manufacturing Co., Ltd.
- Integrated circuit25 Aug 2026US 12,721,183 B2Texas Instruments Incorporated
- Method for fabricating inductors and inductor1 Oct 2026US 2026/0302059 A1Anhui University
- Additively manufactured passive components for high frequency applications24 Sep 2026US 2026/0284745 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Improved temperature-stable soft-magnetic powder24 Sep 2026US 2026/0290665 A1BASF SE
- Core piece, reactor, converter and power conversion device3 Sep 2026US 2026/0260795 A1Autonetworks Technologies, Ltd.
- Method for manufacturing fe-xsi(x=4-10.0wt%) alloy compressed powder core by high-temperature molding27 Aug 2026US 2026/0249351 A1Filliper Inc.
Most cited
By later US patents
- Ferromagnetic powder for dust core300US 7,498,080 B2Foxconn Technology Co., Ltd. · 2009
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Powdered iron core magnetic devices106US 4,601,765 AGeneral Electric Company · 1986
- Processing and manufacturing methods enabled using non-stoichiometric nanomaterials89US 6,713,176 B2NanoProducts Corporation · 2004