G03G 2221/1636
For the exposure unit
Official title: for the exposure unit
G03G2221/1636 (For the exposure unit) appears on 256 US grants and 176 published applications in this corpus.
Search patents in G03G- Granted patents
- 256
- Published applications
- 176
- Assignees
- 56
- Inventors
- 457
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 1 |
| 2003 | 2 | 3 |
| 2004 | 4 | 4 |
| 2005 | 1 | 3 |
| 2006 | 4 | 8 |
| 2007 | 3 | 8 |
| 2008 | 6 | 12 |
| 2009 | 2 | 27 |
| 2010 | 12 | 13 |
| 2011 | 17 | 16 |
| 2012 | 14 | 9 |
| 2013 | 18 | 5 |
| 2014 | 16 | 10 |
| 2015 | 10 | 3 |
| 2016 | 9 | 10 |
| 2017 | 7 | 1 |
| 2018 | 2 | 6 |
| 2019 | 4 | 3 |
| 2020 | 5 | 8 |
| 2021 | 7 | 3 |
| 2022 | 2 | 2 |
| 2023 | 2 | 6 |
| 2024 | 4 | 4 |
| 2025 | 5 | 7 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus8 Sep 2026US 12,730,408 B2Canon Kabushiki Kaisha
- Optical scanning device and image forming apparatus including the same28 Jul 2026US 12,693,610 B2KYOCERA Document Solutions Inc.
- Image forming apparatus including motor supported by frame member and metal plates7 Apr 2026US 12,596,324 B2Canon Kabushiki Kaisha
- Image forming apparatus having optical scanning unit with wire harness and connector31 Mar 2026US 12,591,186 B2KYOCERA Document Solutions Inc.
- Light-emitting device and drawing apparatus14 Oct 2025US 12,443,123 B2FUJIFILM Business Innovation Corp.
- Optical scanning device and image forming apparatus including the same28 May 2026US 2026/0147289 A1KYOCERA Document Solutions Inc.
- Image forming apparatus30 Apr 2026US 2026/0118817 A1KYOCERA Document Solutions Inc.
- Image forming apparatus including duct structure that supports light emitting elements for exposing a photoconductor13 Nov 2025US 2025/0348018 A1Canon Kabushiki Kaisha
- Image forming apparatus9 Oct 2025US 2025/0314989 A1Canon Kabushiki Kaisha
- Cleaning device and image forming apparatus28 Aug 2025US 2025/0271805 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Process cartridge and image forming apparatus280US 5,585,889 ACanon Kabushiki Kaisha · 1996
- Image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising a rotation fulcrum portion109US 6,678,488 B2Canon Kabushiki Kaisha · 2004
- Process cartridge and image forming apparatus107US 5,404,198 ACanon Kabushiki Kaisha · 1995
- Process cartridge and image forming system96US 5,510,878 ACanon Kabushiki Kaisha · 1996
- Process cartridge having positioning member for positioning optical device92US 5,659,847 ACanon Kabushiki Kaisha · 1997