G03G 2215/0855
Materials and manufacturing of the developing device
G03G2215/0855 (Materials and manufacturing of the developing device) appears on 454 US grants and 355 published applications in this corpus.
Search patents in G03G- Granted patents
- 454
- Published applications
- 355
- Assignees
- 85
- Inventors
- 1,015
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 18 | 0 |
| 1998 | 26 | 0 |
| 1999 | 24 | 0 |
| 2000 | 23 | 0 |
| 2001 | 27 | 6 |
| 2002 | 25 | 21 |
| 2003 | 10 | 20 |
| 2004 | 13 | 6 |
| 2005 | 6 | 19 |
| 2006 | 14 | 21 |
| 2007 | 18 | 16 |
| 2008 | 10 | 26 |
| 2009 | 13 | 34 |
| 2010 | 12 | 12 |
| 2011 | 22 | 16 |
| 2012 | 18 | 5 |
| 2013 | 16 | 7 |
| 2014 | 7 | 5 |
| 2015 | 7 | 8 |
| 2016 | 10 | 4 |
| 2017 | 3 | 8 |
| 2018 | 12 | 8 |
| 2019 | 9 | 12 |
| 2020 | 19 | 18 |
| 2021 | 15 | 15 |
| 2022 | 11 | 15 |
| 2023 | 13 | 12 |
| 2024 | 10 | 19 |
| 2025 | 14 | 11 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus having cyclonic separating portion, toner container, and developing apparatus15 Sep 2026US 12,736,896 B2Canon Kabushiki Kaisha
- Magnet roller, developing roller, and image forming apparatus1 Sep 2026US 12,724,363 B2KYOCERA Document Solutions Inc.
- Electrophotographic roller, process cartridge, electrophotographic image forming apparatus, and method for manufacturing electrophotographic roller11 Aug 2026US 12,704,799 B2Canon Kabushiki Kaisha
- Powder container, image forming apparatus, and method for manufacturing powder container12 May 2026US 12,625,442 B2Ricoh Company, Ltd.
- Recording device28 Apr 2026US 12,613,481 B2Seiko Epson Corporation
- Sleeve, developer carrying member, and developing device8 Oct 2026US 2026/0310116 A1Canon Kabushiki Kaisha
- Development roll for electrophotographic equipment17 Sep 2026US 2026/0277130 A1Sumitomo Riko Company Limited
- Developing device, process cartridge, and imaging forming apparatus10 Sep 2026US 2026/0267257 A1Etria Co., Ltd.
- Electrophotographic member, developing apparatus, electrophotographic process cartridge, and electrophotographic image forming apparatus10 Sep 2026US 2026/0267258 A1Canon Kabushiki Kaisha
- Developer carrying member and method for manufacturing the same27 Aug 2026US 2026/0252001 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Development cartridge and image forming apparatus86US 6,151,459 ACanon Kabushiki Kaisha · 2000
- Developing cartridge, side cover mounting method and electrophotographic image forming apparatus84US 7,068,965 B2Canon Kabushiki Kaisha · 2006
- Developer cartridge and image forming apparatus with shaft misalignment accomodation83US 7,817,938 B2Brother Kogyo Kabushiki Kaisha · 2010
- Image formation device and agent supplying device including absorber conveying by negative pressure68US 6,826,381 B2Ricoh Company, Ltd. · 2004
- Developing device using single component toner56US 4,760,422 ARicoh Company, Ltd. · 1988