H01F 1/15341
Preparation processes therefor
Official title: {Preparation processes therefor}
H01F1/15341 (Preparation processes therefor) appears on 185 US grants and 115 published applications in this corpus.
Search patents in H01F- Granted patents
- 185
- Published applications
- 115
- Assignees
- 85
- Inventors
- 418
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 1 | 3 |
| 2003 | 5 | 8 |
| 2004 | 3 | 3 |
| 2005 | 5 | 3 |
| 2006 | 3 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 3 |
| 2013 | 0 | 1 |
| 2014 | 2 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 3 |
| 2017 | 1 | 4 |
| 2018 | 1 | 7 |
| 2019 | 3 | 4 |
| 2020 | 1 | 11 |
| 2021 | 3 | 8 |
| 2022 | 3 | 15 |
| 2023 | 15 | 10 |
| 2024 | 11 | 13 |
| 2025 | 5 | 4 |
| 2026 | 9 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for in-line mechanically scribing of amorphous foil for magnetic domain alignment and core loss reduction22 Sep 2026US 12,741,311 B2Metglas, Inc.
- Undercooling solidification method for preparing amorphous or nanocrystalline soft magnetic alloy with high Fe content4 Aug 2026US 12,700,527 B2Zhejiang University
- Heat treatment method for amorphous alloy ribbon and heat treatment apparatus for amorphous alloy ribbon21 Jul 2026US 12,686,897 B2Proterial, Ltd.
- Iron alloy particle and method for producing iron alloy particle12 May 2026US 12,624,430 B2Murata Manufacturing Co., Ltd.
- Wound magnetic core, alloy core, and method for manufacturing wound magnetic core12 May 2026US 12,626,845 B2Proterial, Ltd.
- Soft magnetic alloy, soft magnetic alloy ribbon, and magnetic device2 Jul 2026US 2026/0188546 A1TDK Corporation
- Magnetic materials and methods of making and use thereof7 May 2026US 2026/0128198 A1Board of Regents, The University of Texas System
- Amorphous Alloy Soft Magnetic Powder, Dust Core, Magnetic Element, And Electronic Device30 Apr 2026US 2026/0117355 A1Seiko Epson Corporation
- Fe-based nanocrystalline alloy ribbon, wound core, and production methods therefor12 Mar 2026US 2026/0074101 A1Daido Steel Co., Ltd.
- Method for manufacturing layered body of iron-based amorphous alloy29 Jan 2026US 2026/0031260 A1Next Core Technologies, Inc.
Most cited
By later US patents
- Continuous casting method for metallic strips130US 4,142,571 AAllied Chemical Corporation · 1979
- Method and apparatus for producing hollow metal microspheres and microspheroids96US 4,415,512 A1983
- Magnetomechanical article surveillance marker with a tunable resonant frequency75US 5,495,230 ASensormatic Electronics Corporation · 1996
- Metal microspheres, filamented hollow metal microspheres and articles produced therefrom69US 4,582,534 A1986
- Bulk rapidly solifidied magnetic materials54US 5,225,004 AMassachusetts Institute of Technology · 1993