H10N 30/804
For piezoelectric transformers
Official title: {for piezoelectric transformers}
H10N30/804 (For piezoelectric transformers) appears on 136 US grants and 110 published applications in this corpus.
Search patents in H10N- Granted patents
- 136
- Published applications
- 110
- Assignees
- 62
- Inventors
- 220
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 3 |
| 2002 | 3 | 6 |
| 2003 | 4 | 5 |
| 2004 | 8 | 5 |
| 2005 | 5 | 6 |
| 2006 | 4 | 1 |
| 2007 | 4 | 7 |
| 2008 | 3 | 3 |
| 2009 | 5 | 5 |
| 2010 | 1 | 8 |
| 2011 | 3 | 3 |
| 2012 | 0 | 2 |
| 2013 | 7 | 5 |
| 2014 | 4 | 4 |
| 2015 | 4 | 0 |
| 2016 | 3 | 3 |
| 2017 | 1 | 3 |
| 2018 | 1 | 8 |
| 2019 | 4 | 8 |
| 2020 | 7 | 13 |
| 2021 | 8 | 3 |
| 2022 | 5 | 1 |
| 2023 | 3 | 3 |
| 2024 | 3 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical energy converter with at least one pair of piezoelectric assemblies and at least one complementary switch for direct connection between them, conversion system and associated control method30 Jun 2026US 12,672,484 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Driver circuitry comprising active inductor circuitry for piezoelectric transducers19 Aug 2025US 12,396,367 B2Cirrus Logic, Inc.
- Piezoelectric power converter with trajectory control1 Apr 2025US 12,268,094 B2Enphase Energy, Inc.
- Digital chip-based digital driving method for piezoelectric ceramic transformer3 Dec 2024US 12,161,049 B2Shanghai Woeion Health Tech Group Co. Ltd.
- Device for producing a non-thermal atmospheric pressure plasma and active space comprising such a device12 Nov 2024US 12,144,097 B2Relyon Plasma GmbH
- Disappearing polarization hetero-superjunction acoustic switch (diphas)24 Sep 2026US 2026/0293526 A1Georgia Tech Research Corporation
- Driver unit and headphone7 May 2026US 2026/0129372 A1FUJIFILM Corporation
- Device for producing a non-thermal atmospheric pressure plasma and active space comprising such a device6 Feb 2025US 2025/0048527 A1Relyon Plasma GmbH
- Digital Chip-Based Digital Driving Method for Piezoelectric Ceramic Transformer15 Aug 2024US 2024/0276885 A1Shanghai Woeion Health Tech Group Co. Ltd.
- Driver circuitry for piezoelectric transducers29 Feb 2024US 2024/0074319 A1Cirrus Logic International Semiconductor Ltd.
Most cited
By later US patents
- Piezoelectric transformer driving circuit90US 5,705,877 ANEC Corporation · 1998
- Pulse frequency modulation drive circuit for piezoelectric transformer81US 6,016,052 ACTS Corporation · 2000
- System for driving a cold-cathode fluorescent lamp connected to a piezoelectric transformer69US 6,239,558 B1Taiheiyo Cement Corporation · 2001
- Actuating circuit of piezoelectric transformer and actuating method thereof65US 5,866,969 ANEC Corporation · 1999
- Drive circuit for driving a piezoelectric transformer capable of decreasing heat developed from electronic parts composing an inverter circuit63US 5,894,184 ANEC Corporation · 1999