B41J 2/1607
Production of print heads with piezoelectric elements
Official title: {Production of print heads with piezoelectric elements (B41J2/1606, B41J2/162 take precedence)}
B41J2/1607 (Production of print heads with piezoelectric elements) appears on 2,419 US grants and 2,427 published applications in this corpus.
Search patents in B41J- Granted patents
- 2,419
- Published applications
- 2,427
- Assignees
- 207
- Inventors
- 2,182
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 0 | 0 |
| 1993 | 8 | 0 |
| 1994 | 14 | 0 |
| 1995 | 28 | 0 |
| 1996 | 22 | 0 |
| 1997 | 32 | 0 |
| 1998 | 45 | 0 |
| 1999 | 49 | 0 |
| 2000 | 50 | 0 |
| 2001 | 51 | 25 |
| 2002 | 84 | 98 |
| 2003 | 69 | 81 |
| 2004 | 73 | 108 |
| 2005 | 70 | 121 |
| 2006 | 79 | 143 |
| 2007 | 64 | 99 |
| 2008 | 79 | 135 |
| 2009 | 111 | 143 |
| 2010 | 118 | 117 |
| 2011 | 124 | 104 |
| 2012 | 98 | 106 |
| 2013 | 105 | 111 |
| 2014 | 129 | 101 |
| 2015 | 128 | 98 |
| 2016 | 94 | 98 |
| 2017 | 88 | 112 |
| 2018 | 101 | 130 |
| 2019 | 118 | 80 |
| 2020 | 79 | 70 |
| 2021 | 63 | 39 |
| 2022 | 38 | 47 |
| 2023 | 31 | 66 |
| 2024 | 56 | 70 |
| 2025 | 41 | 68 |
| 2026 | 37 | 57 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B41J 2/161Of film type, deformed by bending and disposed on a diaphragm1,463
- B41J 2/1609Of finger type, chamber walls consisting integrally of piezoelectric material440
- B41J 2/1612Of stacked structure type, deformed by compression/extension and disposed on a diaphragm280
- B41J 2/1618Fixing the piezoelectric elements55
- B41J 2/1614Of cantilever type42
- B41J 2/1615Of tubular type12
- B41J 2/1617Of disc type10
Recent patents
- Manufacturing method of piezoelectric element, piezoelectric element, and liquid droplet dispensing head22 Sep 2026US 12,745,565 B2Seiko Epson Corporation
- Liquid ejection head8 Sep 2026US 12,728,644 B2Canon Kabushiki Kaisha
- Liquid discharge head and liquid discharge apparatus25 Aug 2026US 12,715,214 B2Ricoh Company, Ltd.
- Liquid ejection head11 Aug 2026US 12,703,182 B2RISO Technologies Corporation
- Liquid ejecting head and manufacturing method14 Jul 2026US 12,679,091 B2Seiko Epson Corporation
- Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus24 Sep 2026US 2026/0293527 A1Seiko Epson Corporation
- Liquid ejecting head and liquid ejecting apparatus27 Aug 2026US 2026/0249608 A1Seiko Epson Corporation
- Liquid discharge head, liquid discharge unit, and liquid discharge apparatus27 Aug 2026US 2026/0249611 A1
- Method of manufacturing liquid discharge head, and liquid discharge head27 Aug 2026US 2026/0249613 A1Canon Kabushiki Kaisha
- Method of manufacturing nozzle plate and nozzle plate13 Aug 2026US 2026/0233525 A1Seiko Epson Corporation
Most cited
By later US patents
- Ink-jet recording head with piezoelectric device and method for manufacturing the same368US 6,142,615 ASeiko Epson Corporation · 2000
- Electrohydrodynamic receptor288US 5,980,719 ASarnoff Corporation · 1999
- Electrode combinations for pumping fluids254US 6,106,685 ASarnoff Corporation · 2000
- Fluid drop ejector and method225US 5,828,394 AThe Board of Trustees of the Leland Stanford Junior University · 1998
- Piezoelectric/electrostrictive actuator having integral ceramic base member and film-type piezoelectric/electrostrictive element (S)146US 5,475,279 ANGK Insulators, Ltd. · 1995