B41J 2002/041
Electromagnetic transducer
Official title: {Electromagnetic transducer}
B41J2002/041 (Electromagnetic transducer) appears on 781 US grants and 688 published applications in this corpus.
Search patents in B41J- Granted patents
- 781
- Published applications
- 688
- Assignees
- 72
- Inventors
- 171
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 76 | 23 |
| 2002 | 34 | 20 |
| 2003 | 24 | 27 |
| 2004 | 35 | 84 |
| 2005 | 42 | 129 |
| 2006 | 79 | 53 |
| 2007 | 72 | 52 |
| 2008 | 64 | 54 |
| 2009 | 64 | 68 |
| 2010 | 57 | 35 |
| 2011 | 74 | 21 |
| 2012 | 8 | 11 |
| 2013 | 4 | 55 |
| 2014 | 25 | 4 |
| 2015 | 44 | 2 |
| 2016 | 4 | 2 |
| 2017 | 6 | 18 |
| 2018 | 6 | 4 |
| 2019 | 6 | 2 |
| 2020 | 9 | 6 |
| 2021 | 5 | 4 |
| 2022 | 3 | 7 |
| 2023 | 6 | 3 |
| 2024 | 4 | 1 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid discharge head and liquid discharge apparatus28 Jul 2026US 12,691,675 B2Ricoh Company, Ltd.
- Method of jetting print material using ejector devices and methods of making the ejector devices9 Jun 2026US 12,649,181 B2Xerox Corporation
- Controlling meniscus position for magnetohydrodynamic metal manufacturing1 Jul 2025US 12,343,750 B2Desktop Metal, Inc.
- Ink jet head for emission of ceramic enamel3 Jun 2025US 12,319,055 B2System Ceramics S.P.A.
- Acoustic force assisted painting system18 Feb 2025US 12,226,790 B2Nissan North America, Inc.
- Controlling meniscus position for magnetohydrodynamic metal manufacturing19 Mar 2026US 2026/0077367 A1Desktop Metal, Inc.
- Liquid discharge head and liquid discharge apparatus4 Dec 2025US 2025/0367920 A1Ricoh Company, Ltd.
- Pulse shaping techniques to improve magnetohydrodynamic printing performance1 May 2025US 2025/0135475 A1Desktop Metal, Inc.
- Method of jetting print material using ejector devices and methods of making the ejector devices24 Oct 2024US 2024/0351096 A1Xerox Corporation
- Ink jet head for enamelling30 Nov 2023US 2023/0382103 A1System Ceramics S.P.A.
Most cited
By later US patents
- Document having an encoded data structure288US 7,234,645 B2Silverbrook Research Pty Ltd · 2007
- Wide format pagewidth inkjet printer287US 6,672,706 B2Silverbrook Research Pty Ltd · 2004
- Method of tab alignment in an integrated circuit type device232US 6,382,769 B1Silverbrook Research Pty Ltd · 2002
- System for authenticating physical objects173US 6,442,525 B12002
- Magnetically actuated ink jet printing device170US 6,234,608 B1Xerox Corporation · 2001