H04N 1/0288
Using a two-dimensional light source
Official title: {using a two-dimensional light source, e.g. two-dimensional LED array}
H04N1/0288 (Using a two-dimensional light source) appears on 58 US grants and 55 published applications in this corpus.
Search patents in H04N- Granted patents
- 58
- Published applications
- 55
- Assignees
- 40
- Inventors
- 126
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 2 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 3 | 3 |
| 2013 | 4 | 2 |
| 2014 | 4 | 2 |
| 2015 | 4 | 4 |
| 2016 | 5 | 2 |
| 2017 | 1 | 3 |
| 2018 | 2 | 5 |
| 2019 | 3 | 3 |
| 2020 | 2 | 3 |
| 2021 | 4 | 2 |
| 2022 | 4 | 7 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-source illuminator23 Sep 2025US 12,422,595 B2Datalogic IP Tech S.R.L.
- Dice scanning device7 Jan 2025US 12,186,674 B2Arranged BV
- User interface for exposure correction of an image transparency2 Apr 2024US 11,949,831 B2KYOCERA Document Solutions Inc.
- Illuminating device, image reading device, and image forming apparatus with multiple light sources19 Mar 2024US 11,936,829 B2Ricoh Company, Ltd.
- Light-emitting device and image forming apparatus29 Aug 2023US 11,743,407 B2Canon Kabushiki Kaisha
- Image reading device and image forming apparatus23 Jul 2026US 2026/0214175 A1
- Illumination device, image reading device, image forming apparatus, inspection device, and illumination method8 Jan 2026US 2026/0012549 A1Ricoh Company, Ltd.
- Multi-source illuminator23 Jan 2025US 2025/0028088 A1Datalogic IP Tech S.R.L.
- Illuminating device, image reading device, and image forming apparatus5 Jan 2023US 2023/0007140 A1Ricoh Company, Ltd.
- Lightguide type illumination device with symmetrically arranged multiple color light sources20 Oct 2022US 2022/0334303 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Palm top image scanner back lighting device56US 5,764,493 A1998
- Image scanner and display apparatus52US 5,929,845 AMotorola, Inc. · 1999
- Contact image sensor, output correction device for contact image sensor, and output correction method for contact image sensor43US 9,516,193 B2Mitsubishi Electric Corporation · 2016
- Flatbed scanner with top and bottom light sources and a moveable light shield25US 6,185,011 B2Acer Peripherals, Inc. · 2001
- Integrated and auxiliary light for image scanners for scanning transparencies and method of lighting transparencies for image scanning17US 6,163,385 A2000