H02K 33/02
Motors with reciprocating, oscillating or vibrating magnet, armature or coil system: with
Official title: with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
H02K33/02 (Motors with reciprocating, oscillating or vibrating magnet, armature or coil system: with) appears on 769 US grants and 735 published applications in this corpus.
Search patents in H02K- Granted patents
- 769
- Published applications
- 735
- Assignees
- 329
- Inventors
- 1,310
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 13 | 0 |
| 1979 | 9 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 7 |
| 2003 | 10 | 9 |
| 2004 | 5 | 8 |
| 2005 | 9 | 13 |
| 2006 | 9 | 21 |
| 2007 | 8 | 12 |
| 2008 | 9 | 10 |
| 2009 | 9 | 14 |
| 2010 | 7 | 14 |
| 2011 | 10 | 17 |
| 2012 | 16 | 21 |
| 2013 | 13 | 21 |
| 2014 | 13 | 24 |
| 2015 | 18 | 16 |
| 2016 | 23 | 29 |
| 2017 | 16 | 44 |
| 2018 | 43 | 89 |
| 2019 | 55 | 50 |
| 2020 | 64 | 66 |
| 2021 | 45 | 38 |
| 2022 | 38 | 58 |
| 2023 | 46 | 45 |
| 2024 | 54 | 57 |
| 2025 | 43 | 28 |
| 2026 | 30 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Voice coil motor with monolithic bearing and pole piece components6 Oct 2026US 12,756,268 B2Thorlabs, Inc.
- Vibration actuator and vibration presentation device6 Oct 2026US 12,756,286 B2MINEBEA MITSUMI Inc.
- Vibration motor with wires with magnetic conductor22 Sep 2026US 12,744,439 B2AAG Microtech (Changzhou) Co., Ld.
- Electromagnetic actuator with bobbin with positioning part for positioning stator1 Sep 2026US 12,726,096 B2Mikuni Corporation
- Electromagnetic actuator18 Aug 2026US 12,712,421 B2Apple Inc.
- Vibration and sound apparatus integrated actuator3 Sep 2026US 2026/0257243 A1Actuward. Co. Ltd.
- Vibration exciter and electronic device13 Aug 2026US 2026/0238104 A1Merry Electronics (Suzhou) Co., Ltd.
- Vibration exciter13 Aug 2026US 2026/0238105 A1Merry Electronics (Suzhou) Co., Ltd.
- Magnetic z-actuator and wafer holder comprising such actuator13 Aug 2026US 2026/0239924 A1Etel S.A.
- Hair trimming device and linear vibration motor6 Aug 2026US 2026/0225270 A1
Most cited
By later US patents
- Linear motor and linear compressor using the same1,020US 7,489,055 B2LG Electronics Inc. · 2009
- Electronic control system and process for electromagnetic pump259US 6,595,756 B2Medtronic MiniMed, Inc. · 2003
- Moving magnet-type actuator229US 5,434,549 ATDK Corporation · 1995
- Reciprocating shaft device175US 5,471,102 A1995
- Electro-optical scanning system with gyrating scan head151US 5,371,347 AGAP Technologies, Inc. · 1994