H01F 41/0273
Imparting anisotropy
Official title: {Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003)}
H01F41/0273 (Imparting anisotropy) appears on 407 US grants and 504 published applications in this corpus.
Search patents in H01F- Granted patents
- 407
- Published applications
- 504
- Assignees
- 222
- Inventors
- 1,032
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 3 |
| 2002 | 9 | 17 |
| 2003 | 10 | 9 |
| 2004 | 11 | 18 |
| 2005 | 5 | 21 |
| 2006 | 10 | 22 |
| 2007 | 8 | 22 |
| 2008 | 19 | 21 |
| 2009 | 11 | 15 |
| 2010 | 13 | 21 |
| 2011 | 17 | 16 |
| 2012 | 14 | 10 |
| 2013 | 8 | 21 |
| 2014 | 6 | 14 |
| 2015 | 3 | 27 |
| 2016 | 15 | 21 |
| 2017 | 20 | 20 |
| 2018 | 18 | 23 |
| 2019 | 8 | 17 |
| 2020 | 21 | 20 |
| 2021 | 8 | 20 |
| 2022 | 13 | 30 |
| 2023 | 22 | 26 |
| 2024 | 21 | 34 |
| 2025 | 15 | 21 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Anisotropic iron nitride permanent magnets6 Oct 2026US 12,755,878 B2Niron Magnetics, Inc.
- Method of manufacturing permanent magnets6 Oct 2026US 12,755,879 B2
- Device for manufacturing permanent magnet30 Jun 2026US 12,671,028 B2Resonac Corporation
- Method for manufacturing a magnet and systems and devices including a magnet16 Jun 2026US 12,653,989 B2Stereotaxis, Inc.
- Production method for rare-earth sintered magnet, and wet-molding device19 May 2026US 12,633,451 B2Proterial, Ltd.
- Method for producing r-t-q system sintered magnet13 Aug 2026US 2026/0237544 A1Proterial, Ltd.
- Extrusion compression molded critical rare earth free bonded permanent magnet6 Aug 2026US 2026/0229404 A1
- Sintered magnet, method for making sintered magnet and pressing mold30 Jul 2026US 2026/0221338 A1TDK Corporation
- High-temperature magnetic field-assisted additive manufacturing (mfaam) for creating specialized bonded magnets with tailored magnetic properties23 Jul 2026US 2026/0208439 A1Texas State University
- Laminated core, rotating machine, and manufacturing method for laminated core23 Jul 2026US 2026/0213587 A1Nippon Steel Corporation
Most cited
By later US patents
- Magnets with varying magnetization direction and method of making such magnets134US 6,940,379 B2Stereotaxis, Inc. · 2005
- Magnets with varying magnetization direction and method of making such magnets98US 7,286,034 B2Stereotaxis, Inc. · 2007
- Method for magnetizing ring magnet and magnetic encoder47US 7,498,914 B2Harmonic Drive Systems Inc. · 2009
- Multiple ring polefaceless permanent magnet and method of making40US 7,423,431 B2General Electric Company · 2008
- Method of producing a cylindrical permanent magnet36US 4,600,555 AHitachi Metals, Ltd. · 1986