G03G 2215/025
Using contact charging means having lateral dimensions related to other apparatus means
Official title: using contact charging means having lateral dimensions related to other apparatus means, e.g. photodrum, developing roller
G03G2215/025 (Using contact charging means having lateral dimensions related to other apparatus means) appears on 111 US grants and 117 published applications in this corpus.
Search patents in G03G- Granted patents
- 111
- Published applications
- 117
- Assignees
- 30
- Inventors
- 309
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 3 | 2 |
| 2003 | 3 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 5 |
| 2007 | 2 | 9 |
| 2008 | 4 | 10 |
| 2009 | 8 | 9 |
| 2010 | 11 | 6 |
| 2011 | 5 | 2 |
| 2012 | 7 | 4 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 1 |
| 2017 | 5 | 4 |
| 2018 | 2 | 7 |
| 2019 | 10 | 4 |
| 2020 | 8 | 11 |
| 2021 | 3 | 2 |
| 2022 | 3 | 1 |
| 2023 | 0 | 11 |
| 2024 | 8 | 13 |
| 2025 | 15 | 7 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus15 Sep 2026US 12,736,891 B2KYOCERA Document Solutions Inc.
- Image forming apparatus18 Aug 2026US 12,710,705 B2Canon Kabushiki Kaisha
- Developing cartridge including electrical contact surface positioned away from developing roller11 Aug 2026US 12,704,800 B2Brother Kogyo Kabushiki Kaisha
- Image forming apparatus16 Dec 2025US 12,498,648 B2KYOCERA Document Solutions Inc.
- Image forming apparatus having first and second retractable toner cartridges25 Nov 2025US 12,481,232 B2Canon Kabushiki Kaisha
- Image forming apparatus14 May 2026US 2026/0133520 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus11 Dec 2025US 2025/0377605 A1KYOCERA Document Solutions Inc.
- Image forming apparatus20 Nov 2025US 2025/0355390 A1Canon Kabushiki Kaisha
- Charging roll for electrophotographic apparatuses30 Oct 2025US 2025/0334899 A1Sumitomo Riko Company Limited
- Drum unit and image formation apparatus6 Mar 2025US 2025/0076779 A1Oki Electric Industry Co., Ltd.
Most cited
By later US patents
- Apparatus for minimizing toner contamination on an image formation member34US 6,470,161 B2Ricoh Company, Ltd. · 2002
- Electrophotographic apparatus having cleaning width larger than charging width14US 5,430,527 ACanon Kabushiki Kaisha · 1995
- Process cartridge and image forming apparatus comprising charging means including a charge member and electroconductive particles14US 6,539,190 B2Canon Kabushiki Kaisha · 2003
- Charging member, process cartridge, and electrophotographic apparatus14US 8,064,803 B2Canon Kabushiki Kaisha · 2011
- Electrophotographic apparatus14US 9,983,490 B2Canon Kabushiki Kaisha · 2018