B41J 2/12
Testing or correcting charge or deflection
Official title: testing or correcting charge or deflection
B41J2/12 (Testing or correcting charge or deflection) appears on 151 US grants and 91 published applications in this corpus.
Search patents in B41J- Granted patents
- 151
- Published applications
- 91
- Assignees
- 70
- Inventors
- 283
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 2 |
| 2003 | 4 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 3 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 7 |
| 2011 | 1 | 5 |
| 2012 | 4 | 3 |
| 2013 | 8 | 7 |
| 2014 | 8 | 14 |
| 2015 | 10 | 2 |
| 2016 | 2 | 2 |
| 2017 | 4 | 1 |
| 2018 | 2 | 5 |
| 2019 | 4 | 6 |
| 2020 | 4 | 4 |
| 2021 | 5 | 2 |
| 2022 | 2 | 5 |
| 2023 | 2 | 4 |
| 2024 | 5 | 6 |
| 2025 | 4 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus1 Sep 2026US 12,722,397 B2KYOCERA Document Solutions Inc.
- Printing apparatus24 Feb 2026US 12,558,890 B2SCREEN Holdings Co., Ltd.
- Print adjustments based on air measurements17 Feb 2026US 12,552,185 B2Hewlett-Packard Development Company, L. P.
- Inkjet recording device and inkjet recording method2 Dec 2025US 12,485,671 B2Hitachi Industrial Equipment Systems Co., Ltd.
- Density unevenness correction data creation method, density unevenness correction data creation apparatus, printing system, program, test chart, and test chart data creation apparatus5 Aug 2025US 12,377,660 B2FUJIFILM Corporation
- Charge electrode assembly and method of aligning components of a printhead16 Jul 2026US 2026/0200226 A1Videojet Technologies Inc.
- Inkjet recording device and inkjet recording method20 Mar 2025US 2025/0091339 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Inkjet recording system and print information correction method12 Dec 2024US 2024/0408907 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Image forming apparatus31 Oct 2024US 2024/0359459 A1KYOCERA Document Solutions Inc.
- Image forming apparatus31 Oct 2024US 2024/0359484 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Continuous ink jet printhead having two-dimensional nozzle array and method of redundant printing100US 6,457,807 B1Eastman Kodak Company · 2002
- Ink jet printer with control96US 5,455,606 ALinx Printing Technologies Limited · 1995
- Continuous ink jet printing apparatus and method including self-testing for printing errors54US 6,003,980 AJemtex Ink Jet Printing Ltd. · 1999
- Method and apparatus for improved printing45US 6,010,205 ARaster Graphics, Inc. · 2000
- Multipulsing method for operating an ink jet apparatus for printing at high transport speeds43US 4,686,539 A1987