H02N 2/163
Motors with ring stator
Official title: {Motors with ring stator}
H02N2/163 (Motors with ring stator) appears on 471 US grants and 305 published applications in this corpus.
Search patents in H02N- Granted patents
- 471
- Published applications
- 305
- Assignees
- 91
- Inventors
- 473
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 12 | 0 |
| 1988 | 18 | 0 |
| 1989 | 5 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 16 | 0 |
| 1993 | 12 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 15 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 19 | 3 |
| 2002 | 6 | 6 |
| 2003 | 4 | 6 |
| 2004 | 5 | 4 |
| 2005 | 3 | 3 |
| 2006 | 3 | 6 |
| 2007 | 4 | 4 |
| 2008 | 6 | 14 |
| 2009 | 9 | 9 |
| 2010 | 8 | 14 |
| 2011 | 10 | 20 |
| 2012 | 10 | 11 |
| 2013 | 11 | 23 |
| 2014 | 14 | 17 |
| 2015 | 25 | 37 |
| 2016 | 23 | 18 |
| 2017 | 23 | 22 |
| 2018 | 15 | 14 |
| 2019 | 17 | 12 |
| 2020 | 18 | 18 |
| 2021 | 12 | 3 |
| 2022 | 16 | 11 |
| 2023 | 14 | 9 |
| 2024 | 2 | 7 |
| 2025 | 6 | 8 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Piezoelectric material, piezoelectric element, and electronic apparatus28 Apr 2026US 12,615,965 B2Canon Kabushiki Kaisha
- Electronic focus adjustment for c-mount lens using PCB piezoelectric motor31 Mar 2026US 12,591,105 B2Datalogic IP Tech S.R.L.
- Camera module17 Mar 2026US 12,578,589 B2Vivo Mobile Communication Co., Ltd.
- Vibration driving device for a strong magnetic-field environment4 Nov 2025US 12,463,560 B2Canon Kabushiki Kaisha
- Optical actuator21 Oct 2025US 12,453,287 B2
- Method of manufacturing piezoelectric ceramics, piezoelectric ceramics, piezoelectric element, ultrasonic motor, optical apparatus, dust removing device, image pickup apparatus, ultrasonic probe, ultrasonic diagnostic apparatus, and electronic apparatus4 Jun 2026US 2026/0157113 A1Canon Kabushiki Kaisha
- Vibration-type actuator, electronic device, and optical device23 Apr 2026US 2026/0112981 A1
- Vibration-type actuator, electronic device, optical apparatus, and manufacturing method for vibration-type actuator2 Apr 2026US 2026/0095111 A1Canon Kabushiki Kaisha
- Method for producing single crystal, single crystal, piezoelectric element, ultrasonic motor, optical device, vibration device, dust removal device, imaging device, ultrasonic probe, ultrasonic diagnostic device, ultrasonic diagnostic system, and electronic device2 Apr 2026US 2026/0096345 A1Canon Kabushiki Kaisha
- Rotor, stator, and ultrasonic motor19 Mar 2026US 2026/0081542 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Circuit and method of driving an ultrasonic motor to method for driving an ultrasonic motor318US 5,214,339 AASMO Co.LTD · 1993
- Ultrasonic motor316US 5,357,164 AOlympus Optical Co., Ltd. · 1994
- Tactility providing apparatus and manipulating device using the same143US 5,389,849 AOlympus Optical Co., Ltd. · 1995
- Motor device utilizing ultrasonic oscillation91US 4,562,374 A1985
- Lens barrel with vibration wave motor82US 4,793,689 ACanon Kabushiki Kaisha · 1988