B41J 2/1609
Of finger type, chamber walls consisting integrally of piezoelectric material
Official title: {of finger type, chamber walls consisting integrally of piezoelectric material}
B41J2/1609 (Of finger type, chamber walls consisting integrally of piezoelectric material) appears on 440 US grants and 375 published applications in this corpus.
Search patents in B41J- Granted patents
- 440
- Published applications
- 375
- Assignees
- 70
- Inventors
- 425
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 13 | 0 |
| 1996 | 12 | 0 |
| 1997 | 14 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 5 |
| 2002 | 13 | 29 |
| 2003 | 18 | 18 |
| 2004 | 13 | 25 |
| 2005 | 15 | 33 |
| 2006 | 13 | 25 |
| 2007 | 21 | 12 |
| 2008 | 21 | 21 |
| 2009 | 18 | 18 |
| 2010 | 16 | 10 |
| 2011 | 23 | 9 |
| 2012 | 14 | 25 |
| 2013 | 18 | 21 |
| 2014 | 22 | 15 |
| 2015 | 22 | 12 |
| 2016 | 14 | 8 |
| 2017 | 10 | 10 |
| 2018 | 6 | 14 |
| 2019 | 12 | 13 |
| 2020 | 6 | 10 |
| 2021 | 7 | 4 |
| 2022 | 4 | 7 |
| 2023 | 7 | 8 |
| 2024 | 7 | 14 |
| 2025 | 6 | 6 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Laminated substrate, liquid ejection head, and method of manufacturing laminated substrate23 Jun 2026US 12,661,893 B2Canon Kabushiki Kaisha
- Liquid ejection head chip, liquid jet head, and liquid jet recording device for ejecting liquid28 Apr 2026US 12,611,863 B2Sii Printek Inc.
- Liquid ejection head21 Apr 2026US 12,605,929 B2RISO Technologies Corporation
- Ink ejection device24 Mar 2026US 12,584,036 B2Konica Minolta, Inc.
- Head chip, liquid jet head, and liquid jet recording device27 Jan 2026US 12,533,879 B2Sii Printek Inc.
- Liquid ejection head and inkjet head2 Jul 2026US 2026/0184075 A1RISO Technologies Corporation
- Head chip, liquid jet head, and liquid jet recording apparatus26 Mar 2026US 2026/0084424 A1Sii Printek Inc.
- Head chip, liquid jet head, and liquid jet recording apparatus26 Mar 2026US 2026/0084427 A1Sll Printek Inc.
- Liquid ejection head and method for manufacturing liquid ejection head25 Sep 2025US 2025/0296335 A1RISO Technologies Corporation
- Method of manufacturing inkjet head, inkjet head manufactured thereby, and method of inspecting inkjet head11 Sep 2025US 2025/0282139 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- Droplet deposition apparatus142US 4,887,100 AAM International, Inc. · 1989
- Droplet deposition apparatus129US 4,879,568 AAM International, Inc. · 1989
- High density multi-channel array, electrically pulsed droplet deposition apparatus96US 5,016,028 AAM International, Inc. · 1991
- Elongated ink jet printhead using joined piezoelectric actuator96US 5,751,318 ACompag Computer Corporation · 1998
- High density ink jet printhead87US 5,235,352 ACompaq Computer Corporation · 1993