H01F 2038/127
With magnetic circuit including permanent magnet
Official title: {with magnetic circuit including permanent magnet}
H01F2038/127 (With magnetic circuit including permanent magnet) appears on 38 US grants and 42 published applications in this corpus.
Search patents in H01F- Granted patents
- 38
- Published applications
- 42
- Assignees
- 17
- Inventors
- 56
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 4 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 4 |
| 2010 | 5 | 6 |
| 2011 | 4 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 4 |
| 2019 | 4 | 2 |
| 2020 | 0 | 2 |
| 2021 | 2 | 6 |
| 2022 | 4 | 1 |
| 2023 | 6 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year.
Recent patents
- Ignition coil28 Nov 2023US 11,830,667 B2Denso Corporation
- Ignition coil for internal combustion engine3 Oct 2023US 11,776,739 B2Denso Corporation
- Method for assembling a magnetic core for a transformer4 Apr 2023US 11,621,115 B2BorgWarner Ludwigsburg GmbH
- Internal combustion engine ignition coil31 Jan 2023US 11,569,028 B2Mitsubishi Electric Corporation
- Ignition coil10 Jan 2023US 11,551,859 B2Denso Corporation
- Ignition coil25 Sep 2025US 2025/0299875 A1Diamond&Zebra Electric Mfg. Co., Ltd.
- Ignition coil for internal combustion engine10 Mar 2022US 2022/0076883 A1Denso Corporation
- Ignition coil16 Sep 2021US 2021/0287850 A1Mitsubishi Electric Corporation
- Ignition coil12 Aug 2021US 2021/0249186 A1Denso Corporation
- Ignition coil12 Aug 2021US 2021/0249187 A1Denso Corporation
Most cited
By later US patents
- Method for defining field emission structures using non-regular patterns41US 7,750,774 B2Cedar Ridge Research, LLC · 2010
- Method for coding field emission structures using a coding combination32US 7,772,952 B2Cedar Ridge Research, LLC · 2010
- System and method for producing biased circular field emission structures18US 7,839,248 B2Cedar Ridge Research, LLC · 2010
- Ignition coil unit for engine and engine provided with plastic head cover16US 6,332,458 B1Hitachi Car Engineering Co., Ltd. · 2001
- Method for producing a code for defining field emission structures13US 7,889,038 B2Cedar Ridge Research, LLC · 2011