H04N 1/02835
In combination with a light guide
Official title: {in combination with a light guide, e.g. optical fibre, glass plate (light-guides per se G02B6/00)}
H04N1/02835 (In combination with a light guide) appears on 319 US grants and 300 published applications in this corpus.
Search patents in H04N- Granted patents
- 319
- Published applications
- 300
- Assignees
- 87
- Inventors
- 472
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 5 |
| 2002 | 9 | 7 |
| 2003 | 7 | 7 |
| 2004 | 7 | 4 |
| 2005 | 2 | 9 |
| 2006 | 9 | 12 |
| 2007 | 2 | 7 |
| 2008 | 4 | 16 |
| 2009 | 11 | 31 |
| 2010 | 11 | 11 |
| 2011 | 13 | 29 |
| 2012 | 17 | 19 |
| 2013 | 22 | 20 |
| 2014 | 34 | 28 |
| 2015 | 27 | 20 |
| 2016 | 23 | 13 |
| 2017 | 11 | 8 |
| 2018 | 13 | 16 |
| 2019 | 14 | 8 |
| 2020 | 6 | 4 |
| 2021 | 4 | 3 |
| 2022 | 3 | 8 |
| 2023 | 7 | 7 |
| 2024 | 4 | 3 |
| 2025 | 1 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical device, image reading unit, and image forming apparatus correcting a width of a slit for reflected light29 Sep 2026US 12,750,452 B2FUJIFILM Business Innovation Corp.
- Reading device, output device, and image forming apparatus12 May 2026US 12,627,763 B2FUJIFILM Business Innovation Corp.
- Illumination device and image scanner11 Mar 2025US 12,248,165 B2Mitsubishi Electric Corporation
- Recording apparatus including reading unit for checking nozzle check pattern24 Dec 2024US 12,177,388 B2Seiko Epson Corporation
- Image reading apparatus and image forming apparatus24 Dec 2024US 12,177,402 B2Canon Kabushiki Kaisha
- Illumination device, image reading device, image forming apparatus, inspection device, and illumination method8 Jan 2026US 2026/0012549 A1Ricoh Company, Ltd.
- Image reading apparatus and image forming apparatus20 Nov 2025US 2025/0358378 A1Canon Kabushiki Kaisha
- Light guide, illumination device, and contact image sensor8 May 2025US 2025/0150543 A1Nippon Sheet Glass Co., Ltd.
- Lens mirror array13 Mar 2025US 2025/0085529 A1Toshiba Tec Kabushiki Kaisha
- Optical device and document reading apparatus30 Jan 2025US 2025/0035835 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Linear illumination device117US 6,268,600 B1Matsushita Electric Industrial Co., Ltd. · 2001
- Light source assembly for scanning devices utilizing light emitting diodes114US 6,139,174 AHewlett-Packard Company · 2000
- Image sensor unit and image reading apparatus having the unit110US 4,783,700 ACanon Kabushiki Kaisha · 1988
- Illuminating unit having diffusion means93US 6,858,837 B2Canon Kabushiki Kaisha · 2005
- Modular optical fiber color image scanner with all-optical scanner head having side-coupled light guide for providing illumination light to the scanner head77US 6,157,027 ANEC USA, Inc. · 2000