H04N 1/4005
With regulating circuits
Official title: {with regulating circuits, e.g. dependent upon ambient temperature or feedback control}
H04N1/4005 (With regulating circuits) appears on 221 US grants and 47 published applications in this corpus.
Search patents in H04N- Granted patents
- 221
- Published applications
- 47
- Assignees
- 73
- Inventors
- 431
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 13 | 0 |
| 2000 | 16 | 0 |
| 2001 | 12 | 7 |
| 2002 | 7 | 5 |
| 2003 | 11 | 7 |
| 2004 | 5 | 3 |
| 2005 | 2 | 4 |
| 2006 | 1 | 2 |
| 2007 | 3 | 4 |
| 2008 | 2 | 2 |
| 2009 | 3 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 3 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Image reading apparatus and image forming apparatus5 Dec 2023US 11,838,481 B2Ricoh Company, Ltd.
- Communication device and printer3 Dec 2019US 10,498,924 B2Brother Kogyo Kabushiki Kaisha
- Image scanner and line period determining method for image scanner28 May 2019US 10,306,105 B2Brother Kogyo Kabushiki Kaisha
- Parameter adjustment method and apparatus11 Sep 2018US 10,075,336 B2Huawei Technologies Co., Ltd.
- Image forming apparatus29 May 2018US 9,983,501 B2Brother Kogyo Kabushiki Kaisha
- Image reading apparatus and image forming apparatus18 May 2023US 2023/0156139 A1Ricoh Company, Ltd.
- Communication device and printer4 Oct 2018US 2018/0288276 A1Brother Kogyo Kabushiki Kaisha
- Image scanner and line period determining method for image scanner17 May 2018US 2018/0139352 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus20 Apr 2017US 2017/0108794 A1Brother Kogyo Kabushiki Kaisha
- Image reading apparatus and image forming apparatus2 Mar 2017US 2017/0064139 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Continuous tone recording system incorporating feedback control circuit119US 4,583,128 AMinnesota Mining and Manufacturing Company · 1986
- Multiple laser beam scanner with beam intensity control69US 4,689,482 AFuji Photo Film Co., Ltd. · 1987
- Intensity control for raster output scanners66US 4,400,740 AXerox Corporation · 1983
- Optical scanning device and image forming apparatus having the same46US 6,429,956 B2Ricoh Company, Ltd. · 2002
- Constant light greyscale generator for CRT color camera system45US 4,438,453 APolaroid Corporation · 1984