H04N 1/02409
Focusing, i.e. adjusting the focus of the scanning head
Official title: {Focusing, i.e. adjusting the focus of the scanning head}
H04N1/02409 (Focusing, i.e. adjusting the focus of the scanning head) appears on 132 US grants and 94 published applications in this corpus.
Search patents in H04N- Granted patents
- 132
- Published applications
- 94
- Assignees
- 76
- Inventors
- 235
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 9 |
| 2003 | 9 | 5 |
| 2004 | 4 | 12 |
| 2005 | 5 | 6 |
| 2006 | 5 | 7 |
| 2007 | 6 | 4 |
| 2008 | 4 | 3 |
| 2009 | 7 | 4 |
| 2010 | 3 | 3 |
| 2011 | 2 | 0 |
| 2012 | 5 | 3 |
| 2013 | 4 | 0 |
| 2014 | 4 | 3 |
| 2015 | 2 | 5 |
| 2016 | 4 | 5 |
| 2017 | 8 | 4 |
| 2018 | 3 | 8 |
| 2019 | 5 | 2 |
| 2020 | 6 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical line sensor3 Feb 2026US 12,541,096 B2Vienex Corporation
- Optical scanner and image forming apparatus including the same18 Nov 2025US 12,474,544 B2KYOCERA Document Solutions Inc.
- Image reading device having a rectangular-shaped opening on a side of a reading target, wherein long sides of the rectangular shaped opening including a first layer, a second layer and an interface between the first layer and the second layer that has an arched shape warping from a center portion of the rectangular-shaped opening10 May 2022US 11,330,134 B2Mitsubishi Electric Corporation
- Automatic microform carrier systems and methods19 Oct 2021US 11,150,544 B2e-ImageData Corp.
- Linear-immersed sweeping accumulation for 3D printing27 Oct 2020US 10,814,546 B2University of Southern California
- Image reading apparatus and control method of image reading apparatus8 Oct 2026US 2026/0313056 A1Seiko Epson Corporation
- In-field document scanner calibration; document scanners with integrated contact biometric scanning; and document scanners with integrated non-contact biometric scanning1 Oct 2026US 2026/0303729 A1HID Global Corporation
- Image reading device22 May 2025US 2025/0168287 A1Seiko Epson Corporation
- Lens-mirror array19 Dec 2024US 2024/0418983 A1Toshiba Tec Kabushiki Kaisha
- Optical line sensor25 Jan 2024US 2024/0027750 A1Vienex Corporation
Most cited
By later US patents
- Scanner device and control method thereof, and image input system55US 6,233,059 B1Canon Kabushiki Kaisha · 2001
- Image reading device and storage medium storing control procedure for image reading device48US 6,950,139 B2Nikon Corporation · 2005
- Self aligning raster input scanner46US 4,724,330 AXerox Corporation · 1988
- Image reader with focus and magnification detection control38US 4,751,376 AMinolta Camera Kabushiki Kaisha · 1988
- Alignment system for scanning arrays35US 4,318,135 AXerox Corporation · 1982