H02N 2/145
Large signal circuits
Official title: {Large signal circuits, e.g. final stages}
H02N2/145 (Large signal circuits) appears on 136 US grants and 72 published applications in this corpus.
Search patents in H02N- Granted patents
- 136
- Published applications
- 72
- Assignees
- 51
- Inventors
- 199
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 2 |
| 2002 | 7 | 7 |
| 2003 | 4 | 3 |
| 2004 | 4 | 2 |
| 2005 | 0 | 2 |
| 2006 | 2 | 3 |
| 2007 | 2 | 3 |
| 2008 | 2 | 3 |
| 2009 | 0 | 1 |
| 2010 | 2 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 0 | 1 |
| 2015 | 2 | 5 |
| 2016 | 3 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 8 |
| 2020 | 2 | 8 |
| 2021 | 8 | 5 |
| 2022 | 9 | 3 |
| 2023 | 5 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Piezoelectric actuator for deformable lens13 Jan 2026US 12,523,866 B1Apple Inc.
- Vibration driving device for a strong magnetic-field environment4 Nov 2025US 12,463,560 B2Canon Kabushiki Kaisha
- Driving-unit operation method and controller2 Sep 2025US 12,405,440 B2Miniswys S.A.
- Piezoelectric motor and injection device4 Jun 2024US 11,998,717 B2Piezo Sonic Corporation.
- Piezoelectric based MEMS device with time sharing actuation and sensing circuitry4 Jun 2024US 12,001,012 B2STMicroelectronics S.r.l.
- Control apparatus and vibration driving apparatus9 Jul 2026US 2026/0196950 A1Canon Kabushiki Kaisha
- Control device that controls vibration device, and method of controlling vibration device19 Dec 2024US 2024/0421727 A1Murata Manufacturing Co., Ltd.
- Drive circuit for an ultrasonic motor12 Dec 2024US 2024/0413768 A1Seagate Technology LLC
- Driving-unit operation method and controller26 Jan 2023US 2023/0024495 A1Miniswys S.A.
- Piezoelectric resonator and drive device24 Nov 2022US 2022/0376635 A1Seiko Epson Corporation
Most cited
By later US patents
- Device and method for driving symmetric load systems139US 6,465,931 B2QorTek, Inc. · 2002
- Piezoelectric motor81US 5,872,418 API Ceramic GmbH · 1999
- Circuitry for driving ultrasonic motor78US 4,952,834 AOlympus Optical Co., Ltd. · 1990
- Piezoelectric actuator for optical alignment screws68US 5,410,206 ANew Focus, Inc. · 1995
- Vibration wave motor56US 4,513,219 ACanon Kabushiki Kaisha · 1985