B41J 2/14314
Structure of ink jet print heads with electrostatically actuated membrane
Official title: {Structure of ink jet print heads with electrostatically actuated membrane}
B41J2/14314 (Structure of ink jet print heads with electrostatically actuated membrane) appears on 444 US grants and 360 published applications in this corpus.
Search patents in B41J- Granted patents
- 444
- Published applications
- 360
- Assignees
- 54
- Inventors
- 340
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 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 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 43 | 8 |
| 2002 | 41 | 16 |
| 2003 | 21 | 9 |
| 2004 | 17 | 25 |
| 2005 | 15 | 63 |
| 2006 | 15 | 24 |
| 2007 | 23 | 21 |
| 2008 | 30 | 31 |
| 2009 | 23 | 34 |
| 2010 | 39 | 23 |
| 2011 | 33 | 13 |
| 2012 | 7 | 6 |
| 2013 | 9 | 31 |
| 2014 | 26 | 6 |
| 2015 | 30 | 7 |
| 2016 | 6 | 1 |
| 2017 | 3 | 6 |
| 2018 | 3 | 3 |
| 2019 | 4 | 4 |
| 2020 | 5 | 5 |
| 2021 | 5 | 7 |
| 2022 | 8 | 5 |
| 2023 | 1 | 4 |
| 2024 | 4 | 6 |
| 2025 | 3 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Liquid discharge head, liquid discharge device, and liquid discharge apparatus14 Oct 2025US 12,441,109 B2Ricoh Company, Ltd.
- Inkjet printhead27 Aug 2026US 2026/0249609 A1Enjet Co. Ltd.
- Liquid droplet ejection device, liquid droplet ejection nozzle head, and liquid droplet ejection method3 Jul 2025US 2025/0214338 A1Sijtechnology, Inc.
- Droplet discharging device and droplet discharging method26 Dec 2024US 2024/0424789 A1Sijtechnology, Inc.
- Nozzle head, manufacturing method of nozzle head, and droplet discharging device11 Jul 2024US 2024/0227397 A9Sijtechnology, Inc.
- Nozzle head, manufacturing method of nozzle head, and droplet discharging device25 Apr 2024US 2024/0131843 A1Sijtechnology, Inc.
Most cited
By later US patents
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- Ink jet head drive apparatus and drive method, and a printer using these139US 5,644,341 ASeiko Epson Corporation · 1997
- Digital camera system containing a VLIW vector processor133US 6,879,341 B1Silverbrook Research Pty Ltd · 2005