B41J 2/045
By pressure
Official title: by pressure, e.g. electromechanical transducers
B41J2/045 (By pressure) appears on 8,570 US grants and 8,813 published applications in this corpus.
Search patents in B41J- Granted patents
- 8,570
- Published applications
- 8,813
- Assignees
- 571
- Inventors
- 7,586
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 9 | 0 |
| 1982 | 13 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 21 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 13 | 0 |
| 1991 | 11 | 0 |
| 1992 | 29 | 0 |
| 1993 | 19 | 0 |
| 1994 | 27 | 0 |
| 1995 | 33 | 0 |
| 1996 | 53 | 0 |
| 1997 | 53 | 0 |
| 1998 | 97 | 0 |
| 1999 | 91 | 0 |
| 2000 | 139 | 0 |
| 2001 | 194 | 53 |
| 2002 | 241 | 182 |
| 2003 | 210 | 193 |
| 2004 | 198 | 330 |
| 2005 | 174 | 405 |
| 2006 | 223 | 317 |
| 2007 | 249 | 302 |
| 2008 | 271 | 353 |
| 2009 | 264 | 379 |
| 2010 | 343 | 302 |
| 2011 | 316 | 236 |
| 2012 | 229 | 202 |
| 2013 | 235 | 274 |
| 2014 | 327 | 302 |
| 2015 | 412 | 350 |
| 2016 | 358 | 326 |
| 2017 | 326 | 496 |
| 2018 | 393 | 504 |
| 2019 | 471 | 476 |
| 2020 | 465 | 507 |
| 2021 | 399 | 516 |
| 2022 | 388 | 420 |
| 2023 | 336 | 402 |
| 2024 | 353 | 387 |
| 2025 | 292 | 313 |
| 2026 | 231 | 286 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Drive circuit board and liquid ejection apparatus6 Oct 2026US 12,752,527 B2Seiko Epson Corporation
- Liquid ejection apparatus, recording medium, and liquid ejection head6 Oct 2026US 12,752,528 B2Konica Minolta, Inc.
- Inkjet apparatus and method of aligning the same6 Oct 2026US 12,752,534 B2Samsung Display Co., Ltd.
- Liquid discharge apparatus and liquid discharge method6 Oct 2026US 12,752,536 B2Ricoh Company, Ltd.
- Piezoelectric element, method for manufacturing piezoelectric element, and liquid ejection head6 Oct 2026US 12,757,636 B2Canon Kabushiki Kaisha
- Drive waveform generator, liquid discharge head, liquid discharge apparatus, manufacturing apparatus for display devices, and method of manufacturing display devices8 Oct 2026US 2026/0307382 A1
- Liquid discharge head substrate, liquid discharge head, and liquid discharge apparatus8 Oct 2026US 2026/0307383 A1Canon Kabushiki Kaisha
- Printing device and method for controlling the same8 Oct 2026US 2026/0307384 A1Samsung Display Co., Ltd.
- Printing apparatus, control method, and storage medium8 Oct 2026US 2026/0307385 A1Canon Kabushiki Kaisha
- Drive waveform generator, liquid discharge head, and liquid discharge apparatus8 Oct 2026US 2026/0307386 A1
Most cited
By later US patents
- Bubble jet recording method and apparatus in which a heating element generates bubbles in a liquid flow path to project droplets2,047US 4,723,129 ACanon Kabushiki Kaisha · 1988
- Droplet generating method and apparatus thereof1,847US 4,463,359 ACanon Kabushiki Kaisha · 1984
- Bubble jet recording method and apparatus in which a heating element generates bubbles in multiple liquid flow paths to project droplets1,733US 4,740,796 ACanon Kabushiki Kaisha · 1988
- Ink jet recording method1,590US 4,345,262 ACanon Kabushiki Kaisha · 1982
- Liquid jet recording process and liquid jet recording head1,557US 4,313,124 ACanon Kabushiki Kaisha · 1982