G03G 15/041
With variable magnification
Official title: with variable magnification
G03G15/041 (With variable magnification) appears on 470 US grants and 139 published applications in this corpus.
Search patents in G03G- Granted patents
- 470
- Published applications
- 139
- Assignees
- 71
- Inventors
- 766
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 16 | 0 |
| 1978 | 23 | 0 |
| 1979 | 9 | 0 |
| 1980 | 7 | 0 |
| 1981 | 16 | 0 |
| 1982 | 13 | 0 |
| 1983 | 21 | 0 |
| 1984 | 28 | 0 |
| 1985 | 26 | 0 |
| 1986 | 38 | 0 |
| 1987 | 22 | 0 |
| 1988 | 27 | 0 |
| 1989 | 23 | 0 |
| 1990 | 22 | 0 |
| 1991 | 24 | 0 |
| 1992 | 12 | 0 |
| 1993 | 11 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 0 | 4 |
| 2005 | 1 | 1 |
| 2006 | 3 | 4 |
| 2007 | 3 | 7 |
| 2008 | 3 | 3 |
| 2009 | 0 | 5 |
| 2010 | 6 | 6 |
| 2011 | 4 | 7 |
| 2012 | 5 | 3 |
| 2013 | 9 | 4 |
| 2014 | 5 | 2 |
| 2015 | 4 | 6 |
| 2016 | 5 | 5 |
| 2017 | 4 | 7 |
| 2018 | 4 | 7 |
| 2019 | 6 | 4 |
| 2020 | 10 | 12 |
| 2021 | 3 | 3 |
| 2022 | 4 | 6 |
| 2023 | 4 | 4 |
| 2024 | 4 | 5 |
| 2025 | 3 | 14 |
| 2026 | 1 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bookbinding apparatus that creates book by bonding a plurality of sheets using toner11 Aug 2026US 12,704,798 B2Canon Kabushiki Kaisha
- Controlling exposure apparatus used in image forming apparatus30 Dec 2025US 12,510,840 B2Canon Kabushiki Kaisha
- Image processing apparatus18 Feb 2025US 12,228,873 B2Toshiba Tec Kabushiki Kaisha
- Light emitting device and image forming apparatus including light emitting device11 Feb 2025US 12,222,660 B2Canon Kabushiki Kaisha
- Image forming apparatus12 Nov 2024US 12,140,899 B2Canon Kabushiki Kaisha
- Optical scanning device and image forming apparatus1 Oct 2026US 2026/0299459 A1Konica Minolta, Inc.
- Image forming apparatus10 Sep 2026US 2026/0267270 A1Canon Kabushiki Kaisha
- Scanning optical device and image forming apparatus3 Sep 2026US 2026/0259518 A1Canon Kabushiki Kaisha
- Light scanning apparatus and image forming apparatus including the same27 Aug 2026US 2026/0251996 A1Canon Kabushiki Kaisha
- Light emitting device, and optical writing device and image forming system using the light emitting device20 Aug 2026US 2026/0244124 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Apparatus for the reduction of image intensity variations in a continuously variable reducing copier47US 4,426,153 AIBM Corporation · 1984
- Copying machine having a capability of reproducing images at different magnifications44US 4,575,227 AMinolta Camera Kabushiki Kaisha · 1986
- Variable magnification electrostatic copying machine39US 4,277,163 ARicoh Company, Ltd. · 1981
- Electrical drive for scanning optics in a continuously variable reduction copier35US 4,332,461 AIBM Corporation · 1982
- Electrophotographic copying apparatus equipped with scanning system control device33US 4,211,482 AMinolta Camera Kabushiki Kaisha · 1980