B41J 2/27
Actuators for print wires
B41J2/27 (Actuators for print wires) appears on 402 US grants and 23 published applications in this corpus.
Search patents in B41J- Granted patents
- 402
- Published applications
- 23
- Assignees
- 127
- Inventors
- 460
- Latest grant
- 12 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 20 | 0 |
| 1978 | 7 | 0 |
| 1979 | 12 | 0 |
| 1980 | 25 | 0 |
| 1981 | 19 | 0 |
| 1982 | 8 | 0 |
| 1983 | 18 | 0 |
| 1984 | 23 | 0 |
| 1985 | 24 | 0 |
| 1986 | 29 | 0 |
| 1987 | 26 | 0 |
| 1988 | 19 | 0 |
| 1989 | 24 | 0 |
| 1990 | 16 | 0 |
| 1991 | 30 | 0 |
| 1992 | 18 | 0 |
| 1993 | 17 | 0 |
| 1994 | 15 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 3 | 0 |
| 2005 | 1 | 9 |
| 2006 | 3 | 1 |
| 2007 | 2 | 4 |
| 2008 | 5 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 3 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Liquid ejection head12 Oct 2021US 11,141,982 B2Brother Kogyo Kabushiki Kaisha
- Interchangeable guide head for transfer mechanism11 May 2021US 11,001,078 B2Rohinni, LLC
- Liquid discharge head, head unit, apparatus for discharging liquid, and liquid discharging method27 Apr 2021US 10,987,927 B2Ricoh Company, Ltd.
- Print head and print apparatus28 Jul 2015US 9,090,088 B2Oki Data Corporation
- Dot head and method of manufacturing armature structure for dot head12 Jan 2010US 7,645,082 B2Toshiba Tec Kabushiki Kaisha
- Liquid Ejection Head1 Oct 2020US 2020/0307225 A1Brother Kogyo Kabushiki Kaisha
- Interchangeable guide head for transfer mechanism2 Apr 2020US 2020/0101760 A1Rohinni, LLC
- Liquid discharge head, head unit, apparatus for discharging liquid, and liquid discharging method6 Feb 2020US 2020/0039217 A1Ricoh Company, Ltd.
- Application unit, application apparatus, method for manufacturing object to which material is applied, and method for manufacturing substrate13 Dec 2018US 2018/0359861 A1Ntn Corporation
- Print head and print apparatus10 Mar 2011US 2011/0058877 A1Oki Data Corporation
Most cited
By later US patents
- Electromagnetic reciprocating linear actuator with permanent magnet armature133US 4,259,653 AMagnetic Laboratories, Inc. · 1981
- Dot printer head with reduced magnetic interference118US 4,537,520 ATokyo Electric Co., Ltd. · 1985
- Lever actuator comprising a longitudinal-effect electroexpansive transducer and designed to prevent actuation from degrading the actuator72US 4,435,666 ANippon Electric Co., Ltd. · 1984
- Electromagnet assembly for mosaic printing head and related manufacturing method38US 4,433,927 AHoneywell Information Systems Italia · 1984
- Mechanical amplification mechanism for electromechanical transducer33US 4,675,568 ANEC Corporation · 1987