H02K 2201/09
Magnetic cores comprising laminations characterised by being fastened by caulking
H02K2201/09 (Magnetic cores comprising laminations characterised by being fastened by caulking) appears on 262 US grants and 233 published applications in this corpus.
Search patents in H02K- Granted patents
- 262
- Published applications
- 233
- Assignees
- 127
- Inventors
- 617
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 3 |
| 2002 | 8 | 9 |
| 2003 | 3 | 3 |
| 2004 | 6 | 3 |
| 2005 | 5 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 3 |
| 2008 | 2 | 7 |
| 2009 | 2 | 1 |
| 2010 | 4 | 3 |
| 2011 | 2 | 3 |
| 2012 | 4 | 6 |
| 2013 | 3 | 8 |
| 2014 | 5 | 12 |
| 2015 | 5 | 10 |
| 2016 | 12 | 10 |
| 2017 | 5 | 16 |
| 2018 | 12 | 4 |
| 2019 | 8 | 16 |
| 2020 | 11 | 23 |
| 2021 | 17 | 19 |
| 2022 | 21 | 16 |
| 2023 | 10 | 14 |
| 2024 | 13 | 16 |
| 2025 | 8 | 13 |
| 2026 | 11 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adhesive bonding structure in stacked core and rotating electrical machine15 Sep 2026US 12,738,777 B2Nippon Steel Corporation
- Stator of an electric machine and an electric machine with axial and radial coolant channels8 Sep 2026US 12,732,034 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Rotor interlocking elements and method for their manufacturing14 Jul 2026US 12,683,471 B2Dana Tm4 Italia S.R.L.
- Laminated core, dynamo-electric machine, method for producing laminated core, and method for producing dynamo-electric machine30 Jun 2026US 12,671,279 B2Mitsubishi Electric Corporation
- Method for manufacturing rotor12 May 2026US 12,627,205 B2Toyota Boshoku Kabushiki Kaisha
- Motor core for electric vehicle composed of dissimilar materials and method for manufacturing the same1 Oct 2026US 2026/0302843 A1Hyundai Motor Company
- Stator Lamination Made of Steel Foil24 Sep 2026US 2026/0291301 A1BorgWarner Inc.
- Laminated core, rotating machine, and manufacturing method for laminated core23 Jul 2026US 2026/0213587 A1Nippon Steel Corporation
- Laminated core manufacturing apparatus and laminated core manufacturing method25 Jun 2026US 2026/0180376 A1Posco Mobility Solution Corporation
- Stator core25 Jun 2026US 2026/0180377 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Method for manufacturing long, slender lamina stack from nonuniform laminae118US 6,163,949 AL. H. Carbide Corporation · 2000
- Rotary motor and production method thereof, and laminated core and production method thereof91US 5,859,486 AMitsubishi Denki Kabushiki Kaisha · 1999
- Armature core77US 5,338,996 AMitsubishi Denki Kabushiki Kaisha · 1994
- Rotor of electric motor77US 6,147,428 ASanyo Electric Co., Ltd. · 2000
- Electric motor with optimum core dimensions63US 5,045,742 AGeneral Electric Company · 1991