G03G 2215/1604
Main transfer electrode
G03G2215/1604 (Main transfer electrode) appears on 836 US grants and 704 published applications in this corpus.
Search patents in G03G- Granted patents
- 836
- Published applications
- 704
- Assignees
- 103
- Inventors
- 1,552
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 43 | 0 |
| 1998 | 39 | 0 |
| 1999 | 41 | 0 |
| 2000 | 31 | 0 |
| 2001 | 26 | 4 |
| 2002 | 14 | 14 |
| 2003 | 9 | 14 |
| 2004 | 16 | 28 |
| 2005 | 15 | 49 |
| 2006 | 23 | 55 |
| 2007 | 37 | 69 |
| 2008 | 44 | 63 |
| 2009 | 45 | 69 |
| 2010 | 50 | 62 |
| 2011 | 58 | 56 |
| 2012 | 68 | 28 |
| 2013 | 48 | 7 |
| 2014 | 24 | 7 |
| 2015 | 15 | 25 |
| 2016 | 22 | 12 |
| 2017 | 15 | 9 |
| 2018 | 8 | 10 |
| 2019 | 12 | 19 |
| 2020 | 22 | 9 |
| 2021 | 9 | 15 |
| 2022 | 12 | 8 |
| 2023 | 13 | 27 |
| 2024 | 21 | 23 |
| 2025 | 23 | 18 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 2215/1623Transfer beltIndexing code412
- G03G 2215/1614Transfer rollIndexing code279
- G03G 2215/1609CorotronIndexing code65
- G03G 2215/1619Transfer drumIndexing code57
- G03G 2215/1628BladeIndexing code34
- G03G 2215/1642BrushIndexing code17
- G03G 2215/1633PlateIndexing code13
- G03G 2215/1638WiresIndexing code7
Recent patents
- Image forming apparatus including chute located upstream of fuser1 Sep 2026US 12,724,375 B2Brother Kogyo Kabushiki Kaisha
- Transfer belt and image forming apparatus incorporating transfer belt19 May 2026US 12,631,992 B2Ricoh Company, Ltd.
- Image forming apparatus14 Apr 2026US 12,601,994 B2Canon Kabushiki Kaisha
- Image forming apparatus17 Mar 2026US 12,578,670 B2Canon Kabushiki Kaisha
- Transfer unit and image forming apparatus therewith3 Mar 2026US 12,566,393 B2KYOCERA Document Solutions Inc.
- Electrophotographic belt and electrophotographic image-forming device17 Sep 2026US 2026/0277139 A1
- Image forming apparatus30 Apr 2026US 2026/0118801 A1Canon Kabushiki Kaisha
- Image forming apparatus12 Feb 2026US 2026/0044106 A1Canon Kabushiki Kaisha
- Electrophotographic member, electrophotographic image forming apparatus and method of producing electrophotographic member5 Feb 2026US 2026/0036926 A1Canon Kabushiki Kaisha
- Conductive dispersion solution, resin film-forming coating material, resin film, member, and electrophotographic image forming apparatus25 Dec 2025US 2025/0391583 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Apparatus and method of driving a transfer belt92US 7,447,453 B2Samsung Electronics Co., Ltd. · 2008
- Image forming apparatus equipped with cleaning device74US 5,845,174 AMinolta Co., Ltd. · 1998
- Image transferring device for an image forming apparatus57US 5,812,919 ARicoh Company, Ltd. · 1998
- Image forming apparatus which removes a surface potential of an intermediate transfer member52US 5,983,060 ARicoh Company, Ltd. · 1999
- Method and apparatus for forming an image with no degradation51US 6,697,595 B2Ricoh Company, Ltd. · 2004