H01F 10/324
Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer
Official title: {Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer}
H01F10/324 (Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer) appears on 3,024 US grants and 3,007 published applications in this corpus.
Search patents in H01F- Granted patents
- 3,024
- Published applications
- 3,007
- Assignees
- 467
- Inventors
- 2,972
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 14 | 0 |
| 1997 | 28 | 0 |
| 1998 | 34 | 0 |
| 1999 | 40 | 0 |
| 2000 | 61 | 0 |
| 2001 | 65 | 46 |
| 2002 | 73 | 113 |
| 2003 | 103 | 112 |
| 2004 | 129 | 147 |
| 2005 | 112 | 148 |
| 2006 | 130 | 141 |
| 2007 | 108 | 120 |
| 2008 | 94 | 138 |
| 2009 | 95 | 115 |
| 2010 | 90 | 118 |
| 2011 | 118 | 107 |
| 2012 | 123 | 119 |
| 2013 | 137 | 106 |
| 2014 | 117 | 106 |
| 2015 | 103 | 83 |
| 2016 | 91 | 72 |
| 2017 | 75 | 69 |
| 2018 | 58 | 115 |
| 2019 | 151 | 217 |
| 2020 | 181 | 223 |
| 2021 | 170 | 170 |
| 2022 | 141 | 121 |
| 2023 | 118 | 96 |
| 2024 | 103 | 95 |
| 2025 | 91 | 78 |
| 2026 | 33 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01F 10/3254The spacer being semiconducting or insulating1,799
- H01F 10/3268The exchange coupling being asymmetric1,635
- H01F 10/3286Spin-exchange coupled multilayers having at least one layer with perpendicular magnetic anisotropy900
- H01F 10/329Spin-exchange coupled multilayers wherein the magnetisation of the free layer is switched725
- H01F 10/3295Spin-exchange coupled multilayers wherein the magnetic pinned or free layers are laminated319
- H01F 10/3263The exchange coupling being symmetric149
- H01F 10/325The spacer being noble metal137
- H01F 10/3245The spacer being superconductive2
Recent patents
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Most cited
By later US patents
- Magnetic device with optimized heat confinement1,021US 8,411,500 B2Crocus Technology SA · 2013
- Electronic device using magnetic components385US 5,695,864 AInternational Business Machines Corporation · 1997
- Spin transfer magnetic element with free layers having high perpendicular anisotropy and in-plane equilibrium magnetization315US 6,992,359 B2Grandis, Inc. · 2006
- Magnetic element utilizing spin transfer and an MRAM device using the magnetic element308US 6,714,444 B2Grandis, Inc. · 2004
- Current-induced magnetic switching device and memory including the same272US 6,256,223 B1International Business Machines Corporation · 2001