H01F 1/24
The particles being insulated
Official title: the particles being insulated
H01F1/24 (The particles being insulated) appears on 778 US grants and 1,104 published applications in this corpus.
Search patents in H01F- Granted patents
- 778
- Published applications
- 1,104
- Assignees
- 285
- Inventors
- 1,751
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 11 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 19 | 0 |
| 2001 | 13 | 2 |
| 2002 | 11 | 10 |
| 2003 | 12 | 11 |
| 2004 | 12 | 16 |
| 2005 | 6 | 18 |
| 2006 | 9 | 21 |
| 2007 | 10 | 23 |
| 2008 | 10 | 31 |
| 2009 | 10 | 30 |
| 2010 | 16 | 35 |
| 2011 | 12 | 36 |
| 2012 | 24 | 34 |
| 2013 | 19 | 38 |
| 2014 | 25 | 43 |
| 2015 | 18 | 39 |
| 2016 | 23 | 38 |
| 2017 | 20 | 46 |
| 2018 | 23 | 61 |
| 2019 | 42 | 64 |
| 2020 | 45 | 69 |
| 2021 | 38 | 103 |
| 2022 | 38 | 82 |
| 2023 | 84 | 95 |
| 2024 | 80 | 66 |
| 2025 | 50 | 43 |
| 2026 | 32 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High frequency low loss magnetic core and method of manufacture4 Aug 2026US 12,700,529 B2Powdermet, Inc.
- Reactor, converter, and power conversion device4 Aug 2026US 12,700,531 B2Autonetworks Technologies, Ltd.
- Soft magnetic powder containing oxide insulation film, manufacturing method thereof, and powder core produced therefrom28 Jul 2026US 12,695,013 B2Korea Institute of Science and Technology
- Reactor28 Jul 2026US 12,695,025 B2Tokin Corporation
- Coil component23 Jun 2026US 12,665,124 B2TDK Corporation
- Electronic component and information reading method1 Oct 2026US 2026/0302018 A1TDK Corporation
- Improved temperature-stable soft-magnetic powder24 Sep 2026US 2026/0290665 A1BASF SE
- Magnetic film24 Sep 2026US 2026/0290686 A13M Innovative Properties Company
- Inductor17 Sep 2026US 2026/0279632 A1Murata Manufacturing Co., Ltd.
- Soft magnetic iron-based powder and preparation method therefor, and soft magnetic component3 Sep 2026US 2026/0260793 A1Posco
Most cited
By later US patents
- Ferromagnetic powder for dust core300US 7,498,080 B2Foxconn Technology Co., Ltd. · 2009
- Doubly-coated iron particles84US 5,063,011 AHoeganaes Corporation · 1991
- Flux concentrator and method of making a magnetic flux concentrator79US 8,692,639 B2Access Business Group International LLC · 2014
- Powder having multilayered film on its surface and process for preparing the same73US 5,985,466 ANittetsu Mining Co., Ltd. · 1999
- Composite material and a method for producing the same71US 5,183,631 AMatsushita Electric Industrial Co., Ltd. · 1993