H02K 1/02
Details of the magnetic circuit: characterised by the magnetic material
Official title: characterised by the magnetic material
H02K1/02 (Details of the magnetic circuit: characterised by the magnetic material) appears on 1,199 US grants and 1,655 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,199
- Published applications
- 1,655
- Assignees
- 639
- Inventors
- 2,975
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 17 | 0 |
| 1999 | 14 | 0 |
| 2000 | 20 | 0 |
| 2001 | 17 | 3 |
| 2002 | 16 | 21 |
| 2003 | 13 | 23 |
| 2004 | 15 | 28 |
| 2005 | 14 | 27 |
| 2006 | 17 | 29 |
| 2007 | 15 | 28 |
| 2008 | 8 | 35 |
| 2009 | 20 | 27 |
| 2010 | 23 | 55 |
| 2011 | 32 | 30 |
| 2012 | 33 | 31 |
| 2013 | 16 | 59 |
| 2014 | 14 | 59 |
| 2015 | 21 | 64 |
| 2016 | 39 | 79 |
| 2017 | 46 | 117 |
| 2018 | 67 | 103 |
| 2019 | 87 | 89 |
| 2020 | 98 | 118 |
| 2021 | 87 | 108 |
| 2022 | 83 | 126 |
| 2023 | 82 | 110 |
| 2024 | 91 | 117 |
| 2025 | 77 | 96 |
| 2026 | 67 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- Rare earth sintered magnet, method for producing rare earth sintered magnet, rotor, and rotary machine1 Oct 2026US 2026/0302010 A1Mitsubishi Electric Corporation
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Most cited
By later US patents
- Permanent magnet field-type rotating machine128US 5,684,352 AHitachi Metals, Ltd. · 1997
- Toroidally wound brushless DC motor120US 4,547,713 AKollmorgen Technologies Corporation · 1985
- Axial field motor/generator110US 5,982,074 AAdvanced Technologies Int., Ltd. · 1999
- Hyper halbach permanent magnet arrays110US 8,009,001 B1The Boeing Company · 2011
- Electric motor or generator100US 5,731,649 A1998