H04N 1/0088
Detecting or preventing tampering attacks on the reproduction system
Official title: {Detecting or preventing tampering attacks on the reproduction system}
H04N1/0088 (Detecting or preventing tampering attacks on the reproduction system) appears on 33 US grants and 25 published applications in this corpus.
Search patents in H04N- Granted patents
- 33
- Published applications
- 25
- Assignees
- 13
- Inventors
- 93
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 3 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 4 | 2 |
| 2020 | 1 | 4 |
| 2021 | 1 | 0 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image processing apparatus and method of controlling image processing apparatus for restricting operation to notification information6 May 2025US 12,294,682 B2Sharp Kabushiki Kaisha
- Image forming apparatus, control method, and storage medium26 Nov 2024US 12,155,802 B2Canon Kabushiki Kaisha
- Information processing apparatus capable of detecting alteration in software13 Sep 2022US 11,443,111 B2Canon Kabushiki Kaisha
- Information processing apparatus capable of detecting software tampering and control method therefor2 Aug 2022US 11,403,399 B2Canon Kabushiki Kaisha
- System, method of detecting alternation of printed matter, and storage medium12 Jan 2021US 10,893,162 B2Ricoh Company, Ltd.
- Image forming apparatus, control method, and non-transitory computer-readable recording medium5 Mar 2026US 2026/0067409 A1Konica Minolta, Inc.
- Image processing apparatus and method of controlling image processing apparatus30 Nov 2023US 2023/0388431 A1Sharp Kabushiki Kaisha
- Imaging device configured to process entries in a distributed ledger4 Aug 2022US 2022/0247871 A1KYOCERA Document Solutions Inc.
- Image forming apparatus, control method, and storage medium28 Apr 2022US 2022/0131983 A1Canon Kabushiki Kaisha
- System, method of detecting alternation of printed matter, and storage medium4 Jun 2020US 2020/0177738 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Image processing with anti-forgery function191US 5,481,377 ACanon Kabushiki Kaisha · 1996
- Image forming device with forgery prevention66US 5,568,268 AFuji Xerox Co., Ltd. · 1996
- Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function57US 5,659,628 ARicoh Company, Ltd. · 1997
- Image processing apparatus with anti-forgery function52US 5,363,202 ACanon Kabushiki Kaisha · 1994
- Image forming apparatus which monitors hardware errors of a controller of a copying-inhibited function46US 5,640,467 ARicoh Company, Ltd. · 1997