H02K 23/32
Having wave or undulating windings
Official title: having wave or undulating windings
H02K23/32 (Having wave or undulating windings) appears on 28 US grants and 22 published applications in this corpus.
Search patents in H02K- Granted patents
- 28
- Published applications
- 22
- Assignees
- 19
- Inventors
- 62
- Latest grant
- 7 Apr 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 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 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 3 |
| 2013 | 1 | 2 |
| 2014 | 2 | 4 |
| 2015 | 3 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 1 |
| 2018 | 1 | 2 |
| 2019 | 3 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electric motor7 Apr 2020US 10,615,650 B2Mitsuba Corporation
- Electric motor3 Sep 2019US 10,404,112 B2Mitsuba Corporation
- Wave winding having a low cogging torque, stator and electric machine comprising a wave winding of said type11 Jun 2019US 10,320,255 B2Volkswagen Aktiengesellschaft
- Direct current motor1 Jan 2019US 10,170,954 B2Hitachi Automotive Systems, Ltd.
- Electric motor11 Sep 2018US 10,075,031 B2Mitsuba Corporation
- Electric motor6 Dec 2018US 2018/0351423 A1Mitsuba Corporation
- Electric motor8 Feb 2018US 2018/0041078 A1Mitsuba Corporation
- Wave Winding Having A Low Cogging Torque, Stator And Electric Machine Comprising A Wave Winding Of Said Type9 Nov 2017US 2017/0324294 A1Volkswagen Aktiengesellschaft
- Direct Current Motor1 Dec 2016US 2016/0352171 A1Hitachi Automotive Systems, Ltd.
- Electric motor3 Mar 2016US 2016/0065012 A1Mitsuba Corporation
Most cited
By later US patents
- Brush arrangement for electrical machine21US 8,686,612 B2Robert Bosch GmbH · 2014
- DC motor13US 4,532,449 ACanon Kabushiki Kaisha · 1985
- Armature of DC motor12US 5,191,257 AMitsubishi Denki Kabushiki Kaisha · 1993
- Electric motor and method of manufacturing the same12US 6,079,659 AASMO Co.LTD · 2000
- Segmented magnet dynamoelectric machine with series connected rotor conductors10US 4,307,310 AWestinghouse Electric Corp. · 1981