G03G 2215/0877
Sealing of the developing device opening, facing the image-carrying member
G03G2215/0877 (Sealing of the developing device opening, facing the image-carrying member) appears on 58 US grants and 43 published applications in this corpus.
Search patents in G03G- Granted patents
- 58
- Published applications
- 43
- Assignees
- 20
- Inventors
- 128
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 3 |
| 2002 | 3 | 3 |
| 2003 | 3 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 4 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 4 | 2 |
| 2015 | 3 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 3 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 2 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sheet-shaped sealing member, removable unit, and image forming apparatus9 Jun 2026US 12,650,659 B2Ricoh Company, Ltd.
- Developing device, process cartridge, and image forming apparatus including an entrance seal which contacts an image bearer11 Feb 2025US 12,222,664 B2Ricoh Company, Ltd.
- Developing device and image forming apparatus that suppress discharge of developer24 Sep 2024US 12,099,316 B2FUJIFILM Business Innovation Corp.
- Print powder reservoir sealed from atmosphere at lower pressure than atmosphere22 Aug 2023US 11,733,620 B2Hewlett-Packard Development Company, L. P.
- Developing device and image forming apparatus including same17 Jan 2023US 11,556,078 B2KYOCERA Document Solutions Inc.
- Sheet-shaped sealing member, removable unit, and image forming apparatus17 Sep 2026US 2026/0277133 A1Ricoh Company, Ltd.
- Sheet-shaped sealer, removable unit, and image forming apparatus27 Aug 2026US 2026/0252000 A1Etria Co., Ltd.
- Developing device, process cartridge, and image forming apparatus4 Dec 2025US 2025/0370374 A1
- Sheet-shaped sealing member, removable unit, and image forming apparatus17 Jul 2025US 2025/0231505 A1Ricoh Company, Ltd.
- Developing device, process cartridge, and image forming apparatus7 Mar 2024US 2024/0077813 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Cartridge detachably attachable to image forming apparatus102US 6,496,667 B2Canon Kabushiki Kaisha · 2002
- Electrophotographic image forming apparatus and process cartridge75US 7,499,663 B2Canon Kabushiki Kaisha · 2009
- Developer container having a grip member, process cartridge mountable to an image forming apparatus having such a developer container, an image forming apparatus detachably mounting a process cartridge having such a developer container, a bearing structure having a grip member, and a side cover having a grip member73US 6,834,171 B2Canon Kabushiki Kaisha · 2004
- Developer accommodating unit, developing device, process cartridge and image forming apparatus67US 9,207,581 B2Canon Kabushiki Kaisha · 2015
- Developing unit, process cartridge and electrophotographic image forming apparatus63US 6,101,348 ACanon Kabushiki Kaisha · 2000