B41J 2/0455
Details of switching sections of circuit
Official title: {Details of switching sections of circuit, e.g. transistors}
B41J2/0455 (Details of switching sections of circuit) appears on 376 US grants and 472 published applications in this corpus.
Search patents in B41J- Granted patents
- 376
- Published applications
- 472
- Assignees
- 63
- Inventors
- 484
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 13 |
| 2003 | 8 | 5 |
| 2004 | 9 | 15 |
| 2005 | 9 | 14 |
| 2006 | 10 | 8 |
| 2007 | 6 | 9 |
| 2008 | 5 | 11 |
| 2009 | 9 | 22 |
| 2010 | 16 | 17 |
| 2011 | 14 | 12 |
| 2012 | 13 | 9 |
| 2013 | 12 | 7 |
| 2014 | 16 | 12 |
| 2015 | 19 | 17 |
| 2016 | 18 | 19 |
| 2017 | 19 | 20 |
| 2018 | 15 | 25 |
| 2019 | 25 | 23 |
| 2020 | 21 | 13 |
| 2021 | 10 | 25 |
| 2022 | 19 | 36 |
| 2023 | 15 | 17 |
| 2024 | 20 | 26 |
| 2025 | 20 | 38 |
| 2026 | 25 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Drive circuit board and liquid ejection apparatus15 Sep 2026US 12,734,798 B2Seiko Epson Corporation
- Driving circuit and printing apparatus15 Sep 2026US 12,734,801 B2Canon Kabushiki Kaisha
- Printing apparatus, method, and computer-readable storage medium for maintaining consistent quality of liquid ejection from nozzles8 Sep 2026US 12,728,636 B2Brother Kogyo Kabushiki Kaisha
- Printing device and method for controlling the same8 Oct 2026US 2026/0307384 A1Samsung Display Co., Ltd.
- Liquid ejection head and liquid ejection device1 Oct 2026US 2026/0296005 A1RISO Technologies Corporation
- Liquid ejection head and liquid ejection device1 Oct 2026US 2026/0296006 A1RISO Technologies Corporation
- Liquid discharge apparatus and head unit24 Sep 2026US 2026/0285034 A1Seiko Epson Corporation
- Liquid discharge apparatus and head unit24 Sep 2026US 2026/0285035 A1Seiko Epson Corporation
Most cited
By later US patents
- Recording apparatus having a substrate for a recording head and method of producing the same106US 6,137,509 ACanon Kabushiki Kaisha · 2000
- Integrated fault tolerance in printing mechanisms90US 5,808,631 AEastman Kodak Company · 1998
- Energy control circuit for a thermal ink-jet printhead87US 5,083,137 AHewlett-Packard Company · 1992
- Recording head and recording apparatus using the same50US 6,302,504 B1Canon Kabushiki Kaisha · 2001
- Recording head and recording apparatus and method of manufacturing same38US 5,850,242 ACanon Kabushiki Kaisha · 1998