B41J 2002/14483
Separated pressure chamber
Official title: {Separated pressure chamber}
B41J2002/14483 (Separated pressure chamber) appears on 56 US grants and 56 published applications in this corpus.
Search patents in B41J- Granted patents
- 56
- Published applications
- 56
- Assignees
- 26
- Inventors
- 82
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 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 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 4 |
| 2017 | 2 | 5 |
| 2018 | 3 | 5 |
| 2019 | 6 | 8 |
| 2020 | 7 | 6 |
| 2021 | 9 | 3 |
| 2022 | 3 | 1 |
| 2023 | 3 | 2 |
| 2024 | 2 | 6 |
| 2025 | 4 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid jetting apparatus29 Sep 2026US 12,746,751 B2Brother Kogyo Kabushiki Kaisha
- Liquid ejection head21 Apr 2026US 12,605,929 B2RISO Technologies Corporation
- Liquid ejecting head and liquid ejecting apparatus20 Jan 2026US 12,528,293 B2Seiko Epson Corporation
- Liquid ejection head2 Dec 2025US 12,485,674 B2RISO Technologies Corporation
- Passive mixer in jetting channels of a printhead19 Aug 2025US 12,391,052 B2Ricoh Company, Ltd.
- Nozzle plate for a droplet ejection head and method for manufacturing the same30 Jul 2026US 2026/0217028 A1Xaar Technology Limited
- Liquid ejection head and inkjet printer12 Mar 2026US 2026/0070332 A1RISO Technologies Corporation
- Passive mixer in jetting channels of a printhead27 Nov 2025US 2025/0360725 A1Ricoh Company, Ltd.
- Active mixer in jetting channels of a printhead2 Oct 2025US 2025/0303742 A1Ricoh Company, Ltd.
- Liquid Jetting Apparatus27 Mar 2025US 2025/0100279 A1Brother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Lithographically defined ejection units92US 5,565,113 AXerox Corporation · 1996
- Ink droplet projecting device and an ink jet printer48US 4,380,018 ASanyo Denki Co., Ltd. · 1983
- Capping structures for acoustic printing19US 5,686,945 AXerox Corporation · 1997
- Vented MEMS structures and methods8US 7,131,628 B2Xerox Corporation · 2006
- Ink jet head, manufacturing method thereof, and ink jet printing apparatus6US 6,517,193 B2Canon Kabushiki Kaisha · 2003