G03G 15/0409
Details of projection optics
Official title: {Details of projection optics (for projection printing apparatus G03B27/522)}
G03G15/0409 (Details of projection optics) appears on 244 US grants and 306 published applications in this corpus.
Search patents in G03G- Granted patents
- 244
- Published applications
- 306
- Assignees
- 56
- Inventors
- 450
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 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 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 10 |
| 2007 | 4 | 8 |
| 2008 | 5 | 10 |
| 2009 | 8 | 15 |
| 2010 | 8 | 12 |
| 2011 | 6 | 22 |
| 2012 | 6 | 7 |
| 2013 | 16 | 9 |
| 2014 | 16 | 5 |
| 2015 | 13 | 18 |
| 2016 | 15 | 19 |
| 2017 | 22 | 27 |
| 2018 | 25 | 24 |
| 2019 | 16 | 15 |
| 2020 | 15 | 11 |
| 2021 | 11 | 14 |
| 2022 | 11 | 15 |
| 2023 | 11 | 8 |
| 2024 | 6 | 11 |
| 2025 | 9 | 27 |
| 2026 | 8 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image carrier unit and image forming apparatus6 Oct 2026US 12,754,492 B2FUJIFILM Business Innovation Corp.
- Exposure apparatus and image-forming apparatus8 Sep 2026US 12,730,252 B2Canon Kabushiki Kaisha
- Image forming apparatus8 Sep 2026US 12,730,408 B2Canon Kabushiki Kaisha
- Optical scanning apparatus and image forming apparatus5 May 2026US 12,617,215 B2Brother Kogyo Kabushiki Kaisha
- Exposure head and image forming apparatus17 Mar 2026US 12,578,668 B2Canon Kabushiki Kaisha
- Image forming apparatus that prints image by electrophotography17 Sep 2026US 2026/0277129 A1KYOCERA Document Solutions Inc.
- Optical scanning device and image forming apparatus incorporating the same10 Sep 2026US 2026/0267256 A1KYOCERA Document Solutions Inc.
- Optical scanning device and image forming apparatus including same20 Aug 2026US 2026/0241708 A1KYOCERA Document Solutions Inc.
- Optical scanning device and image forming apparatus including the same23 Jul 2026US 2026/0208498 A1KYOCERA Document Solutions Inc.
- Optical scanning device and image forming apparatus including the same16 Jul 2026US 2026/0202662 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Imaging system utilizing a gradient index lens array compensated for non-uniform object illumination33US 4,462,662 AXerox Corporation · 1984
- 2-D straight-scan on imaging surface with a raster polygon26US 9,041,762 B2Prysm, Inc. · 2015
- Light scanning apparatus and image forming apparatus25US 9,195,063 B2Canon Kabushiki Kaisha · 2015
- Projection device17US 4,275,962 ACanon Kabushiki Kaisha · 1981
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus12US 11,237,493 B2Canon Kabushiki Kaisha · 2022