H01F 7/0289
Transducers, loudspeakers, moving coil arrangements
Official title: {Transducers, loudspeakers, moving coil arrangements}
H01F7/0289 (Transducers, loudspeakers, moving coil arrangements) appears on 92 US grants and 105 published applications in this corpus.
Search patents in H01F- Granted patents
- 92
- Published applications
- 105
- Assignees
- 80
- Inventors
- 224
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 4 |
| 2008 | 1 | 4 |
| 2009 | 1 | 2 |
| 2010 | 5 | 3 |
| 2011 | 0 | 1 |
| 2012 | 3 | 3 |
| 2013 | 3 | 0 |
| 2014 | 2 | 1 |
| 2015 | 4 | 9 |
| 2016 | 4 | 6 |
| 2017 | 3 | 4 |
| 2018 | 2 | 2 |
| 2019 | 3 | 6 |
| 2020 | 12 | 17 |
| 2021 | 7 | 10 |
| 2022 | 9 | 15 |
| 2023 | 7 | 7 |
| 2024 | 9 | 5 |
| 2025 | 8 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lens driving device and camera module25 Aug 2026US 12,717,112 B2LG Innotek Co., Ltd.
- Speaker module and electronic device including the same28 Jul 2026US 12,696,020 B2Samsung Electronics Co., Ltd.
- Optical module16 Dec 2025US 12,498,560 B2Hamamatsu Photonics K.K.
- Micromechanical oscillation system9 Dec 2025US 12,493,179 B2Robert Bosch GmbH
- Optical-path folding-element with an extended two degree of freedom rotation range4 Nov 2025US 12,460,946 B2Corephotonics Ltd.
- Improved linear actuator5 Mar 2026US 2026/0066719 A1Tethr Limited
- Optical member driving device and projection display apparatus including the same27 Nov 2025US 2025/0362572 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical-path folding-element with an extended two degree of freedom rotation range30 Oct 2025US 2025/0334425 A1Corephotonics Ltd.
- Lvdt-built-in linear motor30 Oct 2025US 2025/0337308 A1Yuken Kogyo Kabushiki Kaisha
- Coil module for electromagnetic microspeaker and manufacturing method thereof31 Jul 2025US 2025/0246358 A1Otowahr Technology Inc.
Most cited
By later US patents
- Voice coil-type linear motor39US 4,888,506 AHitachi Metals, Ltd. · 1989
- Optical-path folding-element with an extended two degree of freedom rotation range28US 12,085,421 B2Corephotonics Ltd. · 2024
- Electromagnetic actuator for voice coil25US 3,984,706 AFujitsu Limited · 1976
- Button providing force sensing and/or haptic output16US 10,691,211 B2Apple Inc. · 2020
- Inboard type magnetic system for electro-dynamic transducer13US 4,055,732 AMatsushita Electric Industrial Co., Ltd. · 1977