H04R 2231/001
Moulding aspects of diaphragm or surround
H04R2231/001 (Moulding aspects of diaphragm or surround) appears on 78 US grants and 83 published applications in this corpus.
Search patents in H04R- Granted patents
- 78
- Published applications
- 83
- Assignees
- 58
- Inventors
- 195
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 2 |
| 2011 | 0 | 6 |
| 2012 | 7 | 4 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 2 | 4 |
| 2016 | 2 | 7 |
| 2017 | 6 | 4 |
| 2018 | 4 | 8 |
| 2019 | 12 | 8 |
| 2020 | 2 | 8 |
| 2021 | 3 | 2 |
| 2022 | 3 | 2 |
| 2023 | 3 | 5 |
| 2024 | 2 | 4 |
| 2025 | 4 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diaphragm, sound generation device, and method for manufacturing sound generation device11 Aug 2026US 12,707,216 B2LG Electronics Inc.
- Vibration module, speaker having the same, and manufacturing method thereof2 Jun 2026US 12,647,730 B2Tymphany Hk Limited
- Loudspeaker17 Mar 2026US 12,581,241 B2Panasonic Automotive Systems Co., Ltd.
- Diaphragm with deformation structures to reduce vibration magnitude at resonance frequency23 Dec 2025US 12,507,012 B2Glass Acoustic Innovations Co., Ltd.
- Diaphragm and sound generating device9 Dec 2025US 12,492,301 B2Goertek Inc.
- Coaxial Speaker20 Aug 2026US 2026/0247079 A1AAC Microtech (Changzhou) Co., Ltd.
- Speaker Diaphragm and Speaker4 Jun 2026US 2026/0156416 A1Yamaha Corporation
- Conductive diaphragm and speaker using same29 Jan 2026US 2026/0032389 A1AAC Microtech (Changzhou) Co., Ltd.
- Compact ultrasound transducers for intraoral uses23 Oct 2025US 2025/0330754 A1
- Diaphragm with deformation structures to reduce vibration magnitude at resonance frequency9 Oct 2025US 2025/0317689 A1Glass Acoustic Innovations Co., Ltd.
Most cited
By later US patents
- Acoustic diaphragm and method for producing same51US 5,274,199 ASony Corporation · 1993
- Acoustic diaphragm with polyurethane elastomer coating47US 4,140,203 AMatsushita Electric Industrial Co., Ltd. · 1979
- Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same37US 5,744,761 AMatsushita Electric Industrial Co., Ltd. · 1998
- Loud speaker, diaphragm and process for making the diaphragm20US 6,757,404 B2Matsushita Electric Industrial Co., Ltd. · 2004
- Water-proof sound-transmitting membrane, method for producing the water-proof sound-transmitting membrane, and electrical appliance including the water-proof sound-transmitting membrane19US 8,272,517 B2Nitto Denko Corporation · 2012