G03G 15/5041
Detecting a toner image
Official title: {Detecting a toner image, e.g. density, toner coverage, using a test patch (G03G15/553 takes precedence)}
G03G15/5041 (Detecting a toner image) appears on 1,010 US grants and 717 published applications in this corpus.
Search patents in G03G- Granted patents
- 1,010
- Published applications
- 717
- Assignees
- 83
- Inventors
- 1,582
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 11 | 0 |
| 1990 | 18 | 0 |
| 1991 | 21 | 0 |
| 1992 | 24 | 0 |
| 1993 | 27 | 0 |
| 1994 | 16 | 0 |
| 1995 | 23 | 0 |
| 1996 | 28 | 0 |
| 1997 | 15 | 0 |
| 1998 | 33 | 0 |
| 1999 | 35 | 0 |
| 2000 | 18 | 0 |
| 2001 | 18 | 4 |
| 2002 | 18 | 20 |
| 2003 | 19 | 15 |
| 2004 | 14 | 27 |
| 2005 | 17 | 22 |
| 2006 | 22 | 26 |
| 2007 | 29 | 17 |
| 2008 | 9 | 36 |
| 2009 | 20 | 25 |
| 2010 | 29 | 31 |
| 2011 | 25 | 30 |
| 2012 | 30 | 26 |
| 2013 | 27 | 31 |
| 2014 | 34 | 18 |
| 2015 | 34 | 31 |
| 2016 | 34 | 27 |
| 2017 | 28 | 28 |
| 2018 | 29 | 30 |
| 2019 | 40 | 40 |
| 2020 | 39 | 36 |
| 2021 | 30 | 29 |
| 2022 | 31 | 48 |
| 2023 | 34 | 36 |
| 2024 | 32 | 37 |
| 2025 | 23 | 32 |
| 2026 | 21 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming system including varnish applying unit8 Sep 2026US 12,730,401 B2Canon Kabushiki Kaisha
- Image forming apparatus for adjusting position and size of image1 Sep 2026US 12,724,373 B2Canon Kabushiki Kaisha
- Image forming apparatus11 Aug 2026US 12,704,803 B2Canon Kabushiki Kaisha
- Image forming apparatus that performs image corrections based on test images and control method for image forming apparatus21 Jul 2026US 12,687,810 B2Toshiba Tec Kabushiki Kaisha
- Image forming apparatus that can perform light amount calibration to adjust the density of a half tone image30 Jun 2026US 12,669,764 B2KYOCERA Document Solutions Inc.
- Image forming apparatus8 Oct 2026US 2026/0310118 A1Canon Kabushiki Kaisha
- Apparatus1 Oct 2026US 2026/0299478 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus executing calibrations, control method, and storage medium17 Sep 2026US 2026/0274601 A1Canon Kabushiki Kaisha
- Image forming apparatus20 Aug 2026US 2026/0244131 A1Canon Kabushiki Kaisha
- Image forming apparatus6 Aug 2026US 2026/0227731 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Process cartridge and electrophotographic image forming apparatus194US 5,946,531 ACanon Kabushiki Kaisha · 1999
- Infrared reflectance densitometer84US 4,553,033 AXerox Corporation · 1985
- Adaptive process controller for electrophotographic printing75US 5,436,705 AXerox Corporation · 1995
- Closed loop control of reproduction machine64US 4,348,099 AXerox Corporation · 1982
- Gamma correction for apparatus using pre and post transfer image density59US 6,061,533 AMatsushita Electric Industrial Co., Ltd. · 2000