G10H 2220/291
With four or more contacts, switches or sensor triggering levels along the
Official title: with four or more contacts, switches or sensor triggering levels along the key kinematic path
G10H2220/291 (With four or more contacts, switches or sensor triggering levels along the) appears on 8 US grants and 10 published applications in this corpus.
Search patents in G10H- Granted patents
- 8
- Published applications
- 10
- Assignees
- 5
- Inventors
- 18
- Latest grant
- 12 Nov 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 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 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Operation state detecting apparatus, operation state detecting sheet, and electronic instrument12 Nov 2019US 10,475,427 B2Casio Computer Co., Ltd.
- Keyboard unit4 Apr 2017US 9,613,608 B2Yamaha Corporation
- State detecting circuit, key-press detector, and musical instrument6 Sep 2016US 9,438,220 B2Yamaha Corporation
- Programable switch for configuring circuit topologies21 May 2013US 8,445,770 B2
- Key operation detection unit of an electronic keyboard instrument14 Aug 2007US 7,256,359 B2Yamaha Corporation
- Keyboard device and keyboard device assembly method24 Sep 2026US 2026/0290295 A1Casio Computer Co., Ltd.
- A foot-operable pedal26 Jun 2025US 2025/0210021 A1
- Operation state detecting apparatus, operation state detecting sheet, and electronic instrument27 Jun 2019US 2019/0197999 A1Casio Computer Co., Ltd.
- Keyboard unit4 Aug 2016US 2016/0225360 A1Yamaha Corporation
- State detecting circuit, key-press detector, and musical instrument28 Apr 2016US 2016/0118031 A1Yamaha Corporation
Most cited
By later US patents
- Electronic keyboard musical instrument14US 6,765,142 B2Yamaha Corporation · 2004
- Key operation detection unit of an electronic keyboard instrument8US 7,256,359 B2Yamaha Corporation · 2007
- Chord selection system for a musical instrument7US 3,954,039 AC. G. Conn, Ltd. · 1976
- Programable switch for configuring circuit topologies4US 8,445,770 B22013
- Operation state detecting apparatus, operation state detecting sheet, and electronic instrument2US 10,475,427 B2Casio Computer Co., Ltd. · 2019