B23H 2300/20
Relaxation circuit power supplies for supplying the machining current
Official title: Relaxation circuit power supplies for supplying the machining current, e.g. capacitor or inductance energy storage circuits
B23H2300/20 (Relaxation circuit power supplies for supplying the machining current) appears on 88 US grants and 35 published applications in this corpus.
Search patents in B23H- Granted patents
- 88
- Published applications
- 35
- Assignees
- 33
- Inventors
- 115
- Latest grant
- 11 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 5 |
| 2003 | 5 | 2 |
| 2004 | 3 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 3 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 3 |
| 2015 | 3 | 3 |
| 2016 | 2 | 3 |
| 2017 | 2 | 0 |
| 2018 | 1 | 2 |
| 2019 | 4 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Zero excess energy storage transformer11 Mar 2025US 12,249,981 B2Quantum Power Transformation Limited
- Zero excess energy storage transformer19 Sep 2023US 11,764,776 B2Sweven Design Ltd.
- Power source device for electric discharge machine12 Sep 2023US 11,752,565 B2Makino Milling Machine Co., Ltd.
- Electrical discharge machining device, electrical discharge machining method, and design method9 Aug 2022US 11,407,050 B2Seibu Electric & Machinery Co., Ltd.
- Wire electrical discharge machine5 Oct 2021US 11,135,668 B2Fanuc Corporation
- Zero Excess Energy Storage Transformer30 Nov 2023US 2023/0387911 A1Sweven Design Ltd.
- Power source device for electric discharge machine2 Dec 2021US 2021/0370424 A1Makino Milling Machine Co., Ltd.
- Zero excess energy storage transformer14 Jan 2021US 2021/0013880 A1Sweven Design Ltd.
- Electrical discharge machining device, electrical discharge machining method, and design method9 Jan 2020US 2020/0009670 A1Seibu Electric & Machinery Co., Ltd.
- Electrical discharge machine time slice power supply5 Dec 2019US 2019/0366456 A1Johnson Technology, Inc.
Most cited
By later US patents
- Pulse generator spark-erosive metal working32US 4,766,281 AAG fur industrielle Elektronik AGIE Losone bei Locarno · 1988
- Wire-cut, electric-discharge machining power source21US 4,347,425 AFujitsu Fanuc Limited · 1982
- Pulse generator for electroerosive processing14US 4,163,887 AA.G. fur industrielle Elektronik AGIE Losone b. Locarno · 1979
- Power supply device for electric discharge machining14US 7,148,442 B2Fanuc Corporation · 2006
- Storage-capacitor-type EDM power supply13US 4,310,741 AInoue-Japax Research Incorporated · 1982