H02K 1/04
Details of the magnetic circuit: characterised by the material used for insulating
Official title: characterised by the material used for insulating the magnetic circuit or parts thereof
H02K1/04 (Details of the magnetic circuit: characterised by the material used for insulating) appears on 274 US grants and 376 published applications in this corpus.
Search patents in H02K- Granted patents
- 274
- Published applications
- 376
- Assignees
- 211
- Inventors
- 871
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 4 |
| 2002 | 3 | 2 |
| 2003 | 3 | 4 |
| 2004 | 2 | 9 |
| 2005 | 3 | 11 |
| 2006 | 6 | 6 |
| 2007 | 7 | 7 |
| 2008 | 2 | 11 |
| 2009 | 2 | 8 |
| 2010 | 10 | 5 |
| 2011 | 8 | 7 |
| 2012 | 5 | 5 |
| 2013 | 3 | 8 |
| 2014 | 5 | 14 |
| 2015 | 4 | 17 |
| 2016 | 8 | 15 |
| 2017 | 8 | 17 |
| 2018 | 12 | 19 |
| 2019 | 24 | 25 |
| 2020 | 18 | 26 |
| 2021 | 13 | 19 |
| 2022 | 19 | 36 |
| 2023 | 22 | 37 |
| 2024 | 22 | 26 |
| 2025 | 27 | 26 |
| 2026 | 12 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crystalline radical polymerizable composition for fixing a magnet of a rotating electric machine rotor core, a rotating electric machine rotor core using the composition, and a method of manufacturing the rotating electric machine rotor core6 Oct 2026US 12,756,246 B2Aisin Corporation
- Barrier coating for an electric motor rotor assembly6 Oct 2026US 12,756,281 B2BorgWarner Inc.
- Vibration motor with wires with magnetic conductor22 Sep 2026US 12,744,439 B2AAG Microtech (Changzhou) Co., Ld.
- Rotor for motor and method of manufacturing the same30 Jun 2026US 12,671,285 B2Hyundai Motor Company
- Stator, rotating electric machine, and method of manufacturing stator12 May 2026US 12,627,189 B2Sumitomo Bakelite Co., Ltd.
- Electric motor8 Oct 2026US 2026/0312440 A1Nanjing Chervon Industry Co., Ltd.
- Molded stator and motor1 Oct 2026US 2026/0302841 A1Resonac Corporation
- Rotary electrical machine and manufacturing method therefor1 Oct 2026US 2026/0302842 A1Honda Motor Co., Ltd.
- Rotor sleeve based on a thermoplastic composite material3 Sep 2026US 2026/0261160 A1Syensqo Specialty Polymers USA, LLC
- Cylindrical member, tapered part-attached cylindrical member, surface magnet motor, and method for producing surface magnet motor3 Sep 2026US 2026/0261161 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- 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
- Electric motor or generator100US 5,731,649 A1998
- Electric motor or generator having amorphous core pieces being individually accomodated in a dielectric housing97US 5,982,070 ALight Engineering, Inc. · 1999
- Axially stabilized magnetic bearing having a permanently magnetized radial bearing80US 5,126,610 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1992
- Brushless coolant pump and cooling system73US 6,447,270 B1Isothermal Systems Research, Inc. · 2002