H02K 33/18
Motors with reciprocating, oscillating or vibrating magnet, armature or coil system: with
Official title: with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
H02K33/18 (Motors with reciprocating, oscillating or vibrating magnet, armature or coil system: with) appears on 645 US grants and 736 published applications in this corpus.
Search patents in H02K- Granted patents
- 645
- Published applications
- 736
- Assignees
- 306
- Inventors
- 1,191
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 4 |
| 2003 | 2 | 6 |
| 2004 | 6 | 8 |
| 2005 | 3 | 4 |
| 2006 | 3 | 11 |
| 2007 | 4 | 11 |
| 2008 | 4 | 10 |
| 2009 | 8 | 16 |
| 2010 | 11 | 12 |
| 2011 | 14 | 20 |
| 2012 | 10 | 12 |
| 2013 | 13 | 25 |
| 2014 | 21 | 25 |
| 2015 | 18 | 16 |
| 2016 | 16 | 25 |
| 2017 | 21 | 35 |
| 2018 | 25 | 56 |
| 2019 | 45 | 48 |
| 2020 | 50 | 73 |
| 2021 | 41 | 46 |
| 2022 | 36 | 49 |
| 2023 | 48 | 45 |
| 2024 | 42 | 82 |
| 2025 | 47 | 53 |
| 2026 | 51 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Vibration actuator and vibration presentation device6 Oct 2026US 12,756,286 B2MINEBEA MITSUMI Inc.
- Haptic feeling presenting device29 Sep 2026US 12,749,957 B2MINEBEA MITSUMI Inc.
- Vibration module29 Sep 2026US 12,749,958 B2Primax Electronics Ltd.
- Vibration actuator with moving coil and moving magnetic assembly having elastic parts22 Sep 2026US 12,744,440 B2MINEBEA MITSUMI Inc.
- Brush head assembly, transmission structure, and oral cleaning device8 Oct 2026US 2026/0306229 A1
- Haptic motor and electronic device1 Oct 2026US 2026/0302893 A1AAC Microtech (Changzhou) Co., Ltd.
- Camera module24 Sep 2026US 2026/0287973 A1Samsung Electro-Mechanics Co., Ltd.
- Vibration module, controller, and controller set24 Sep 2026US 2026/0291354 A1Nintendo Co., Ltd.
- Drive actuator and electronic device3 Sep 2026US 2026/0261184 A1Goertek Inc.
Most cited
By later US patents
- Adjusting operating characteristics of micromachined torsional oscillators132US 5,969,465 AXROS, Inc. · 1999
- Actuator for active vibration control121US 5,231,336 AHarman International Industries, Incorporated · 1993
- Planar type electromagnetic actuator121US 5,912,608 AThe Nippon Signal Co., Ltd. · 1999
- Electrically operated linear motor with integrated flexure spring and circuit for use in reciprocating compressor115US 6,129,527 ALitton Systems, Inc. · 2000
- Linear motor110US 6,809,434 B1Fisher & Paykel Limited · 2004