H02N 2/166
Motors with disc stator
Official title: {Motors with disc stator}
H02N2/166 (Motors with disc stator) appears on 62 US grants and 22 published applications in this corpus.
Search patents in H02N- Granted patents
- 62
- Published applications
- 22
- Assignees
- 19
- Inventors
- 113
- Latest grant
- 15 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 2 |
| 2002 | 6 | 1 |
| 2003 | 3 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 3 | 3 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 4 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Injector and control method for an ultrasonic motor15 Oct 2024US 12,119,761 B2Nemoto Kyorindo Co., Ltd.
- Ultrasonic motor with stabilized stator vibration8 Aug 2023US 11,722,075 B2Murata Manufacturing Co., Ltd.
- Injector and control method for an ultrasonic motor12 Apr 2022US 11,303,227 B2Nemoto Kyorindo Co., Ltd.
- Injector and control method for an ultrasonic motor17 Jan 2017US 9,545,646 B2Nemoto Kyorindo Co., Ltd.
- Piezo actuator having an electrode structure for a torsional vibration mode, and rotation-type ultrasonic motor including same2 Aug 2016US 9,407,173 B2
- Rotor, stator, and ultrasonic motor19 Mar 2026US 2026/0081542 A1Murata Manufacturing Co., Ltd.
- Ultrasonic motor30 Nov 2023US 2023/0387830 A1Murata Manufacturing Co., Ltd.
- Ultrasonic motor16 Nov 2023US 2023/0364645 A1Murata Manufacturing Co., Ltd.
- Drive control device and ultrasonic motor system12 Oct 2023US 2023/0327580 A1Murata Manufacturing Co., Ltd.
- Ultrasonic motor27 Jul 2023US 2023/0240144 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Lining material and ultrasonic wave driven motor using lining material305US 5,013,956 AMatsushita Electric Industrial Co., Ltd. · 1991
- Driving apparatus for ultrasonic motor49US 4,888,514 AMatsushita Electric Industrial Co., Ltd. · 1989
- Piezoelectric motor41US 4,786,836 AMatsushita Electric Industrail Co., Ltd. · 1988
- Ultrasonic motor35US 4,739,212 AMatsushita Electric Industrial Co., Ltd. · 1988
- Ultrasonic motor with stator projections and at least two concentric rings of electrodes32US 4,829,209 AMatsushita Electric Industrial Co., Ltd. · 1989