H02K 33/08
With dc energisation superimposed on ac energisation
Official title: with DC energisation superimposed on AC energisation
H02K33/08 (With dc energisation superimposed on ac energisation) appears on 13 US grants and 6 published applications in this corpus.
Search patents in H02K- Granted patents
- 13
- Published applications
- 6
- Assignees
- 11
- Inventors
- 34
- Latest grant
- 2 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Linear resonant actuator, control system and brake control method2 Mar 2021US 10,938,286 B1Topray Mems Inc.
- Vibration motor and mobile communication device using same15 Dec 2020US 10,868,463 B2Aac Acoustic Technologies (Shenzhen) Co., Ltd.
- Electromagnetic actuator for active vibration isolation system8 May 2018US 9,964,174 B2Keihin Corporation
- Method and apparatus for making and using 1D and 2D magnetic actuators10 Feb 2009US 7,489,433 B2Microvision, Inc.
- Linear oscillator and electrically driven toothbrush1 Jan 2008US 7,315,098 B2Matsushita Electric Works, Ltd.
- Linear vibration actuator with electromagnet27 Jan 2022US 2022/0029513 A1Mplus Co., Ltd.
- Vibration motor and mobile communication device using same6 Feb 2020US 2020/0044528 A1Aac Acoustic Technologies (Shenzhen) Co., Ltd.
- Electromagnetic actuator for active vibration isolation system24 Mar 2016US 2016/0084337 A1Keihin Corporation
- Variable Laser Beam Focus25 Sep 2008US 2008/0230611 A1Microvision, Inc.
- Method and apparatus for making and using 1D and 2D magnetic actuators8 Nov 2007US 2007/0257565 A1Microvision, Inc.
Most cited
By later US patents
- Linear oscillator and electrically driven toothbrush39US 7,315,098 B2Matsushita Electric Works, Ltd. · 2008
- Controlled stroke electrodynamic linear compressor35US 3,937,600 AMechanical Technology Incorporated · 1976
- Controlled stroke electrodynamic oscillating motor compressor28US 4,067,667 AMechanical Technology Incorporated · 1978
- Multistage resonant compressor24US 4,538,964 AMechanical Technology Incorporated · 1985
- Involute lamination armature for a linear reciprocating motor15US 4,210,831 AExxon Enterprises, Inc. · 1980