H01F 1/0557
Sintered
Official title: {sintered}
H01F1/0557 (Sintered) appears on 178 US grants and 206 published applications in this corpus.
Search patents in H01F- Granted patents
- 178
- Published applications
- 206
- Assignees
- 94
- Inventors
- 418
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 2 | 1 |
| 2004 | 2 | 6 |
| 2005 | 0 | 5 |
| 2006 | 4 | 2 |
| 2007 | 4 | 4 |
| 2008 | 3 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 0 | 7 |
| 2012 | 0 | 3 |
| 2013 | 5 | 12 |
| 2014 | 0 | 6 |
| 2015 | 4 | 19 |
| 2016 | 5 | 11 |
| 2017 | 7 | 23 |
| 2018 | 6 | 10 |
| 2019 | 13 | 15 |
| 2020 | 19 | 15 |
| 2021 | 15 | 9 |
| 2022 | 10 | 14 |
| 2023 | 7 | 13 |
| 2024 | 5 | 12 |
| 2025 | 10 | 7 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anisotropic rare earth sintered magnet and method for producing same7 Jul 2026US 12,676,253 B2Shin-Etsu Chemical Co., Ltd.
- Rare-earth cobalt permanent magnet, method of manufacturing the same, and device21 Apr 2026US 12,609,222 B2Kyushu Institute of Technology
- Permanent magnet with composition having metallic structure with cell phase type crystal and average distance between platelet phases10 Feb 2026US 12,549,040 B2Kabushiki Kaisha Toshiba
- Method for heat treating an object27 Jan 2026US 12,533,727 B2Vacuumschmelze GmbH & Co.KG
- R-T-B-based permanent magnet material, preparation method therefor and use thereof20 Jan 2026US 12,531,174 B2FUJIAN GOLDEN DRAGON RARE-EARTH Co., Ltd.
- Rare earth alloy powder and sintered magnet with reduction-diffusion method using oil-soluble aliphatic organic acid/organic acid-ammonium mixture9 Jul 2026US 2026/0196391 A1Green Strategic Materials Co., Ltd.
- Regenerator for a magnetic heat exchanger and heat exchanger12 Mar 2026US 2026/0071789 A1Vacuumschmelze GmbH & Co.KG
- Method for preparing high-performance rebco high-temperature bulk superconductor based on layered precursor pellet12 Feb 2026US 2026/0045397 A1Southwest Jiaotong University
- Samarium cobalt magnet recycling25 Dec 2025US 2025/0391594 A1ROLLS-ROYCE plc
- Anisotropic bulk magnet and method for manufacturing the same18 Dec 2025US 2025/0382688 A1Korea Institute of Materials Science
Most cited
By later US patents
- Samarium-cobalt magnet with grain growth inhibited SmCo.sub.5 crystals80US 4,075,042 ARaytheon Company · 1978
- Intravascular blood pump comprising corrosion resistant permanent magnet40US 11,107,626 B2Abiomed Europe GmbH · 2021
- Forming curved wafer thin magnets from rare earth-cobalt alloy powders31US 4,104,787 AGeneral Motors Corporation · 1978
- Rare earth magnet of high electrical resistance and production method thereof31US 5,858,124 AHitachi Metals, Ltd. · 1999
- Rare earth-containing permanent magnets23US 3,982,971 AShin-Etsu Chemical Co., Ltd. · 1976