H02K 1/278
Surface mounted magnets
Official title: Surface mounted magnets; Inset magnets
H02K1/278 (Surface mounted magnets) appears on 1,363 US grants and 1,707 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,363
- Published applications
- 1,707
- Assignees
- 671
- Inventors
- 3,123
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 12 | 0 |
| 1987 | 13 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 11 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 17 | 0 |
| 1999 | 15 | 0 |
| 2000 | 16 | 0 |
| 2001 | 13 | 1 |
| 2002 | 9 | 24 |
| 2003 | 8 | 20 |
| 2004 | 19 | 34 |
| 2005 | 26 | 30 |
| 2006 | 22 | 34 |
| 2007 | 9 | 42 |
| 2008 | 22 | 26 |
| 2009 | 15 | 55 |
| 2010 | 30 | 65 |
| 2011 | 35 | 40 |
| 2012 | 31 | 51 |
| 2013 | 37 | 63 |
| 2014 | 35 | 56 |
| 2015 | 46 | 70 |
| 2016 | 41 | 71 |
| 2017 | 58 | 93 |
| 2018 | 50 | 77 |
| 2019 | 91 | 121 |
| 2020 | 99 | 95 |
| 2021 | 68 | 114 |
| 2022 | 83 | 150 |
| 2023 | 90 | 119 |
| 2024 | 127 | 102 |
| 2025 | 91 | 90 |
| 2026 | 39 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor rotor with inner sleeve15 Sep 2026US 12,738,785 B2
- Motor apparatus18 Aug 2026US 12,712,405 B2Hyundai Mobis Co., Ltd.
- Rotor for electric motor11 Aug 2026US 12,706,494 B2Aisin Corporation
- Electric pump rotor11 Aug 2026US 12,706,495 B2Aisin Corporation
- Armature and motor11 Aug 2026US 12,706,502 B2Denso Corporation
- Motor apparatus1 Oct 2026US 2026/0302864 A1Hyundai Mobis Co., Ltd.
- Rotor and Electric Motor24 Sep 2026US 2026/0291312 A1AAC Microtech (Changzhou) Co., Ltd.
- Electric rotating machine24 Sep 2026US 2026/0291314 A1Mitsubishi Electric Mobility Corporation
- Low eddy current loss permanent magnet assembly for permanent magnet motor3 Sep 2026US 2026/0260796 A1Yantai Dongxing Magnetic Materials Inc.
- Systems and Methods for Additive Production of a Magnetic Plate, a Laminated Core, and an Electric Machine3 Sep 2026US 2026/0261159 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Controller for permanent magnet generator155US 5,625,276 AColeman Powermate, Inc. · 1997
- Method of manufacturing retention structure for electric motor rotor magnets145US 4,910,861 AEmerson Electric Co. · 1990
- Permanent magnet motor with enhanced inductance136US 5,798,596 APacific Scientific Company · 1998
- Ultra-high speed permanent magnet axial gap alternator with multiple stators127US 4,996,457 AThe United States of America as represented by the United States Department of Energy · 1991
- Permanent magnet rotor with magnets secured by synthetic resin122US 4,954,736 AMatsushita Electric Works, Ltd. · 1990