G03G 15/0817
Characterised by the lateral sealing at both sides of the donor member
Official title: {characterised by the lateral sealing at both sides of the donor member with respect to the developer carrying direction}
G03G15/0817 (Characterised by the lateral sealing at both sides of the donor member) appears on 302 US grants and 266 published applications in this corpus.
Search patents in G03G- Granted patents
- 302
- Published applications
- 266
- Assignees
- 50
- Inventors
- 529
- Latest grant
- 23 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 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 8 |
| 2002 | 10 | 5 |
| 2003 | 4 | 9 |
| 2004 | 7 | 6 |
| 2005 | 7 | 13 |
| 2006 | 9 | 9 |
| 2007 | 6 | 19 |
| 2008 | 11 | 7 |
| 2009 | 8 | 16 |
| 2010 | 9 | 2 |
| 2011 | 12 | 9 |
| 2012 | 9 | 7 |
| 2013 | 7 | 18 |
| 2014 | 11 | 22 |
| 2015 | 30 | 21 |
| 2016 | 24 | 12 |
| 2017 | 9 | 13 |
| 2018 | 14 | 9 |
| 2019 | 12 | 5 |
| 2020 | 8 | 6 |
| 2021 | 10 | 12 |
| 2022 | 8 | 11 |
| 2023 | 10 | 6 |
| 2024 | 7 | 8 |
| 2025 | 4 | 9 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Developer storage body including frame body having contact surface with holes and seal member contacting contact surface23 Jun 2026US 12,663,739 B2Oki Electric Industry Co., Ltd.
- Developing device including seal and image forming apparatus31 Mar 2026US 12,591,188 B2Ricoh Company, Ltd.
- Developing cartridge having a sheet member provided at end portion of a developing roller17 Feb 2026US 12,554,214 B2Canon Kabushiki Kaisha
- Developing device having a resin replacement area, image forming apparatus, and method for manufacturing developing device30 Dec 2025US 12,510,848 B2KYOCERA Document Solutions Inc.
- Image forming apparatus including main housing, first drum cartridge having first photosensitive drum, and second drum cartridge having second photosensitive drum21 Oct 2025US 12,449,745 B2Brother Kogyo Kabushiki Kaisha
- Seal member, toner carrying device provided with the seal member, and image forming apparatus23 Jul 2026US 2026/0211354 A1Canon Kabushiki Kaisha
- Elongated cords for developer devices21 May 2026US 2026/0140462 A1Hewlett-Packard Development Company, L. P.
- Developing device and image forming system12 Mar 2026US 2026/0072378 A1FUJIFILM Business Innovation Corp.
- Mounting structure, developing device, and image forming apparatus5 Feb 2026US 2026/0036924 A1
- Image forming apparatus including main housing, first drum cartridge having first photosensitive drum, and second drum cartridge having second photosensitive drum4 Dec 2025US 2025/0370405 A1Brother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Developing frame and process cartridge114US 7,127,192 B2Canon Kabushiki Kaisha · 2006
- Developing device and process cartridge with it112US 5,585,895 ACanon Kabushiki Kaisha · 1996
- Developing device, process cartridge and image forming apparatus that prevent toner leakage56US 6,212,343 B1Ricoh Company, Ltd. · 2001
- Image developing device with sealing members for preventing toner leakage53US 6,336,014 B12002
- Sealing device, process cartridge, image forming apparatus and assembling method of the process cartridge45US 5,502,547 ACanon Kabushiki Kaisha · 1996