H02N 2/062
Small signal circuits
Official title: {Small signal circuits; Means for controlling position or derived quantities, e.g. for removing hysteresis}
H02N2/062 (Small signal circuits) appears on 197 US grants and 198 published applications in this corpus.
Search patents in H02N- Granted patents
- 197
- Published applications
- 198
- Assignees
- 109
- Inventors
- 407
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 2 |
| 2003 | 3 | 2 |
| 2004 | 3 | 7 |
| 2005 | 2 | 5 |
| 2006 | 5 | 4 |
| 2007 | 5 | 9 |
| 2008 | 6 | 8 |
| 2009 | 6 | 11 |
| 2010 | 10 | 12 |
| 2011 | 5 | 11 |
| 2012 | 10 | 7 |
| 2013 | 8 | 4 |
| 2014 | 6 | 4 |
| 2015 | 6 | 6 |
| 2016 | 1 | 2 |
| 2017 | 8 | 12 |
| 2018 | 3 | 8 |
| 2019 | 11 | 12 |
| 2020 | 4 | 6 |
| 2021 | 5 | 19 |
| 2022 | 17 | 13 |
| 2023 | 15 | 11 |
| 2024 | 12 | 6 |
| 2025 | 6 | 9 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Camera actuator and camera module including same5 May 2026US 12,619,128 B2LG Innotek Co., Ltd.
- Ultrasonic linear motor and operation method therefor25 Nov 2025US 12,483,161 B2LG Innotek Co., Ltd.
- Control apparatus for vibration actuator, and vibration driving apparatus, interchangeable lens, imaging apparatus, and automatic stage including same1 Jul 2025US 12,348,158 B2Canon Kabushiki Kaisha
- Piezoelectric motors with nanometer-level resolution13 May 2025US 12,301,138 B2Moeemotion Inc.
- Drive device, optical system and lithography apparatus15 Apr 2025US 12,276,916 B2Carl Zeiss SMT GmbH
- Control apparatus and vibration driving apparatus9 Jul 2026US 2026/0196950 A1Canon Kabushiki Kaisha
- Actuator array, substrate table and lithographic tool18 Jun 2026US 2026/0169395 A1ASML Netherlands B. V.
- Optical device actuator and lens barrel provided with same14 May 2026US 2026/0133398 A1Panasonic Intellectual Property Management Co., Ltd.
- Control device and robot14 May 2026US 2026/0135497 A1Seiko Epson Corporation
- Method for controlling an optical module, optical module and control circuit for an assembly of a projection exposure apparatus for semiconductor lithography23 Apr 2026US 2026/0110974 A1
Most cited
By later US patents
- Driving apparatus381US 7,408,288 B2Konica Minolta Holdings, Inc. · 2008
- Method for operating a piezoelectric element327US 8,089,197 B2Epcos AG · 2012
- Method and apparatus for improved control of piezoelectric positioners53US 5,714,831 AWisconsin Alumni Research Foundation · 1998
- Method and apparatus for driving capacitive-type load50US 4,767,959 ANippon Soken, Inc. · 1988
- Closed loop control systems employing relaxor ferroelectric actuators41US 6,707,230 B2The University of North Carolina at Charlotte · 2004