H04R 15/00
Magnetostrictive transducers
Official title: Magnetostrictive transducers (magnetostrictive elements in general H10N30/00)
H04R15/00 (Magnetostrictive transducers) appears on 127 US grants and 133 published applications in this corpus.
Search patents in H04R- Granted patents
- 127
- Published applications
- 133
- Assignees
- 94
- Inventors
- 286
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 2 |
| 2003 | 0 | 4 |
| 2004 | 2 | 1 |
| 2005 | 1 | 5 |
| 2006 | 1 | 2 |
| 2007 | 0 | 5 |
| 2008 | 2 | 4 |
| 2009 | 5 | 6 |
| 2010 | 2 | 8 |
| 2011 | 2 | 3 |
| 2012 | 6 | 3 |
| 2013 | 5 | 11 |
| 2014 | 7 | 13 |
| 2015 | 8 | 8 |
| 2016 | 12 | 7 |
| 2017 | 8 | 9 |
| 2018 | 5 | 2 |
| 2019 | 8 | 5 |
| 2020 | 5 | 17 |
| 2021 | 10 | 3 |
| 2022 | 6 | 2 |
| 2023 | 3 | 3 |
| 2024 | 2 | 2 |
| 2025 | 1 | 6 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Audio transducers15 Apr 2025US 12,279,102 B2Wing Acoustics Limited
- Sensor, strain detection sensor, pressure sensor, and microphone17 Sep 2024US 12,092,533 B2Murata Manufacturing Co., Ltd.
- Audio transducers23 Apr 2024US 11,968,510 B2Wing Acoustics Limited
- Acoustic reproduction device14 Nov 2023US 11,818,537 B2Sony Group Corporation
- Relating to audio transducers1 Aug 2023US 11,716,571 B2Wing Acoustics Limited
- Voice transmission device22 Jan 2026US 2026/0025626 A1FILLTUNE, Inc.
- Vibration apparatus and apparatus including the same19 Jun 2025US 2025/0203295 A1LG Display Co., Ltd.
- Hybrid sound radiation device for vibrating a heavy-weight rigid plate at audio frequencies12 Jun 2025US 2025/0193608 A1Sensonic Design Zrt.
- System And Method For Driving A Transducer15 May 2025US 2025/0159405 A1Sonicedge Dk Aps
- Bone conduction hearing-aid system13 Feb 2025US 2025/0056169 A1Ehime University
Most cited
By later US patents
- Electromagnetic induction hearing aid device164US 5,338,287 A1994
- Magnet arrangement for bone conduction hearing implant49US 8,897,475 B2Vibrant Med-El Hearing Technology GmbH · 2014
- Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof29US 6,449,131 B2Headway Technologies, Inc. · 2002
- Flextensional transducer28US 4,864,548 AImage Acoustics, Inc. · 1989
- Incremental tuning process for electrical resonators based on mechanical motion27US 6,339,276 B12002