G03G 21/0058
Using a roller or a polygonal rotating cleaning member
Official title: {using a roller or a polygonal rotating cleaning member; Details thereof, e.g. surface structure (G03G21/0064 takes precedence)}
G03G21/0058 (Using a roller or a polygonal rotating cleaning member) appears on 265 US grants and 242 published applications in this corpus.
Search patents in G03G- Granted patents
- 265
- Published applications
- 242
- Assignees
- 59
- Inventors
- 581
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 3 |
| 2003 | 2 | 8 |
| 2004 | 5 | 2 |
| 2005 | 3 | 7 |
| 2006 | 7 | 4 |
| 2007 | 5 | 6 |
| 2008 | 1 | 13 |
| 2009 | 3 | 14 |
| 2010 | 5 | 14 |
| 2011 | 7 | 11 |
| 2012 | 12 | 12 |
| 2013 | 14 | 12 |
| 2014 | 16 | 12 |
| 2015 | 15 | 13 |
| 2016 | 12 | 12 |
| 2017 | 7 | 11 |
| 2018 | 17 | 15 |
| 2019 | 15 | 11 |
| 2020 | 13 | 11 |
| 2021 | 14 | 10 |
| 2022 | 7 | 9 |
| 2023 | 5 | 6 |
| 2024 | 8 | 12 |
| 2025 | 4 | 9 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cleaning device, image holding body unit, and image forming apparatus14 Jul 2026US 12,681,419 B2FUJIFILM Business Innovation Corp.
- Control method of image forming apparatus to determine cleaning portion performance, and image forming apparatus30 Jun 2026US 12,669,770 B2KYOCERA Document Solutions Inc.
- Conductive member, charging device, process cartridge, and image forming apparatus2 Jun 2026US 12,645,166 B2FUJIFILM Business Innovation Corp.
- Printing system, control method thereof, and storage medium2 Jun 2026US 12,645,178 B2Canon Kabushiki Kaisha
- Voltage supplying device, developer recovery device, and image forming apparatus23 Dec 2025US 12,504,706 B2KYOCERA Document Solutions Inc.
- Cartridge and image forming apparatus9 Jul 2026US 2026/0194853 A1Canon Kabushiki Kaisha
- Image forming apparatus28 May 2026US 2026/0147306 A1Canon Kabushiki Kaisha
- Image forming apparatus14 May 2026US 2026/0133520 A1FUJIFILM Business Innovation Corp.
- Control method of image forming apparatus, and image forming apparatus29 Jan 2026US 2026/0029741 A1KYOCERA Document Solutions Inc.
- Conductive member, charging device, process cartridge, and image forming apparatus13 Nov 2025US 2025/0348016 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Apparatus for forming an electrophotographic latent image74US 4,967,231 AElectric Co., Ltd. · 1990
- Image forming apparatus including means for removing residual toner57US 4,769,676 AKabushiki Kaisha Toshiba · 1988
- Image forming apparatus featuring a constant contact-pressure drive39US 5,070,366 ACanon Kabushiki Kaisha · 1991
- Removal of particulates from cylindrical members37US 5,685,043 AXerox Corporation · 1997
- Conductive foam rubber roller used in image formation apparatus such as electrophotographic apparatus36US 5,241,343 AFujitsu Limited · 1993