G03G 2215/067
Toner discharging opening covered by arcuate shutter
G03G2215/067 (Toner discharging opening covered by arcuate shutter) appears on 229 US grants and 199 published applications in this corpus.
Search patents in G03G- Granted patents
- 229
- Published applications
- 199
- Assignees
- 24
- Inventors
- 220
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 8 |
| 2005 | 4 | 8 |
| 2006 | 7 | 11 |
| 2007 | 6 | 19 |
| 2008 | 13 | 18 |
| 2009 | 15 | 19 |
| 2010 | 24 | 9 |
| 2011 | 12 | 21 |
| 2012 | 17 | 6 |
| 2013 | 11 | 6 |
| 2014 | 14 | 4 |
| 2015 | 8 | 3 |
| 2016 | 5 | 5 |
| 2017 | 4 | 9 |
| 2018 | 7 | 4 |
| 2019 | 4 | 9 |
| 2020 | 11 | 8 |
| 2021 | 8 | 10 |
| 2022 | 6 | 5 |
| 2023 | 11 | 5 |
| 2024 | 6 | 5 |
| 2025 | 0 | 2 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shutter unit, toner storage container, and image forming apparatus5 May 2026US 12,619,173 B2Ricoh Company, Ltd.
- Toner cartridge, toner supplying mechanism and shutter17 Mar 2026US 12,578,674 B2Canon Kabushiki Kaisha
- Image forming apparatus having movable shutters for opening and closing toner inlets and outlets20 Jan 2026US 12,529,976 B2Brother Kogyo Kabushiki Kaisha
- Toner cartridge including casing having opening and shutter20 Jan 2026US 12,529,981 B2Brother Kogyo Kabushiki Kaisha
- Toner cartridge including casing having opening and shutter17 Dec 2024US 12,169,377 B2Brother Kogyo Kabushiki Kaisha
- Toner cartridge including casing having opening and shutter18 Jun 2026US 2026/0169402 A1Brother Kogyo Kabushiki Kaisha
- Toner cartridge, toner supplying mechanism and shutter18 Jun 2026US 2026/0169426 A1Canon Kabushiki Kaisha
- Image forming apparatus having movable shutters for opening and closing toner inlets and outlets7 May 2026US 2026/0126736 A1Brother Kogyo Kabushiki Kaisha
- Shutter unit, toner storage container, and image forming apparatus11 Sep 2025US 2025/0284224 A1Ricoh Company, Ltd.
- Toner cartridge including casing having opening and shutter12 Jun 2025US 2025/0189909 A1Brother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Toner bottle, toner supply system and image forming apparatus using same133US 6,185,401 B2Canon Kabushiki Kaisha · 2001
- Development unit and toner cartridge for use in an image formation apparatus109US 5,608,501 ABrother Kogyo Kabushiki Kaisha · 1997
- Developer supply container93US 7,242,893 B2Canon Kabiushiki Kaisha · 2007
- Developer cartridge and developing apparatus89US 5,579,101 ACanon Kabushiki Kaisha · 1996
- Developer container, developer supplying device, and image forming apparatus89US 7,321,744 B2Ricoh Company, Ltd. · 2008