H02K 3/524
For u-shaped, e-shaped or similarly shaped cores
Official title: {for U-shaped, E-shaped or similarly shaped cores}
H02K3/524 (For u-shaped, e-shaped or similarly shaped cores) appears on 100 US grants and 91 published applications in this corpus.
Search patents in H02K- Granted patents
- 100
- Published applications
- 91
- Assignees
- 62
- Inventors
- 242
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 3 | 4 |
| 2007 | 2 | 5 |
| 2008 | 4 | 2 |
| 2009 | 3 | 4 |
| 2010 | 7 | 3 |
| 2011 | 2 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 3 | 7 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 3 | 10 |
| 2018 | 3 | 7 |
| 2019 | 7 | 4 |
| 2020 | 7 | 5 |
| 2021 | 8 | 8 |
| 2022 | 5 | 1 |
| 2023 | 1 | 2 |
| 2024 | 5 | 11 |
| 2025 | 3 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotary reciprocating drive actuator16 Jun 2026US 12,656,596 B2Mitsumi Electric Co., Ltd.
- Rotary reciprocating drive actuator20 Jan 2026US 12,531,463 B2Mitsumi Electric Co., Ltd.
- Axial-flux electric machine and method for assembling a stator of an axial-flux electric machine16 Dec 2025US 12,500,458 B2Weg Equipamentos EléTricos S.A.
- Rotary reciprocating drive actuator7 Oct 2025US 12,438,428 B2Mitsumi Electric Co., Ltd.
- Motor, blower, and refrigerator26 Aug 2025US 12,401,237 B2Panasonic Intellectual Property Management Co., Ltd.
- Stacked-winding stator electrical machine13 Feb 2025US 2025/0055340 A1
- Hair clipper pivot motor designed for battery power12 Dec 2024US 2024/0413698 A1Wahl Clipper Corporation
- Stator core1 Aug 2024US 2024/0258845 A1Dyson Technology Limited
- Axial-flux electric machine and method for assembling a stator of an axial-flux electric machine21 Mar 2024US 2024/0097522 A1Weg Equipamentos EléTricos S.A.
- Low-cost modular inductive position sensor and method of manufacturing it29 Feb 2024US 2024/0068518 A1Ingersoll-Rand Industrial U.S., Inc.
Most cited
By later US patents
- Rotary motor and production method thereof, and laminated core and production method thereof91US 5,859,486 AMitsubishi Denki Kabushiki Kaisha · 1999
- Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same67US 6,992,419 B2Amotech Co., Ltd. · 2006
- Rotary motor and production method thereof, and laminated core and production method thereof61US 6,121,711 AMitsubishi Denki Kabushiki Kaisha · 2000
- Permanent magnet rotor and method and apparatus for making same58US 5,345,129 AGeneral Electric Company · 1994
- Brushless D. C. motor and control assembly53US 6,271,638 B1General Electric Company · 2001