H01F 1/061
With a protective layer
Official title: {with a protective layer}
H01F1/061 (With a protective layer) appears on 115 US grants and 86 published applications in this corpus.
Search patents in H01F- Granted patents
- 115
- Published applications
- 86
- Assignees
- 90
- Inventors
- 359
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 3 |
| 2006 | 0 | 6 |
| 2007 | 3 | 4 |
| 2008 | 4 | 1 |
| 2009 | 2 | 4 |
| 2010 | 1 | 5 |
| 2011 | 2 | 6 |
| 2012 | 1 | 4 |
| 2013 | 5 | 3 |
| 2014 | 1 | 2 |
| 2015 | 3 | 2 |
| 2016 | 1 | 4 |
| 2017 | 1 | 2 |
| 2018 | 3 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 5 |
| 2021 | 3 | 2 |
| 2022 | 1 | 6 |
| 2023 | 2 | 5 |
| 2024 | 0 | 5 |
| 2025 | 4 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermally stable, cladded permanent magnets, and compositions and methods for making the same11 Aug 2026US 12,706,235 B2HRL Laboratories, LLC
- Inductor component and method of manufacturing same28 Jul 2026US 12,695,022 B2Murata Manufacturing Co., Ltd.
- Iron-based nanoparticles and grains30 Dec 2025US 12,512,238 B2Regents of the University of Minnesota
- Method of producing phosphate-coated SmFeN-based anisotropic magnetic powder and phosphate-coated SmFeN-based anisotropic magnetic powder4 Nov 2025US 12,462,958 B2Nichia Corporation
- Coercivity-enhanced iron nitride nanoparticles with high saturation magnetization15 Jul 2025US 12,362,082 B2Niron Magnetics, Inc.
- A magnetic device comprising magnetic particles10 Sep 2026US 2026/0269112 A1Bionaut Labs Ltd.
- Alpha-fe-containing rare earth-iron-based magnetic powder, production method thereof, magnetic material for magnetic field amplification, and magnetic material for hyper-high frequency absorption30 Apr 2026US 2026/0115791 A1Nichia Corporation
- Method of producing phosphate-coated smfen-based anisotropic magnetic powder and phosphate-coated smfen-based anisotropic magnetic powder5 Feb 2026US 2026/0038717 A1Nichia Corporation
- Coercivity-enhanced iron nitride nanoparticles with high saturation magnetization23 Oct 2025US 2025/0329484 A1Niron Magnetics, Inc.
- Rare earth magnet and method for manufacturing the same7 Aug 2025US 2025/0249504 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Production of monodisperse, polymeric microspheres86US 4,929,400 ACalifornia Institute of Technology · 1990
- Powder having multilayered film on its surface and process for preparing the same73US 5,985,466 ANittetsu Mining Co., Ltd. · 1999
- In situ use of gelatin or an aminodextran in the preparation of uniform ferrite particles43US 5,240,640 ACoulter Corporation · 1993
- Method for stabilization treatment of ferromagnetic metal powder36US 5,116,437 AChisso Corporation · 1992
- Process for production of ferromagnetic powder33US 4,063,000 AFuji Photo Film Co., Ltd. · 1977