G03G 5/0687
Trisazo dyes
Official title: {Trisazo dyes}
G03G5/0687 (Trisazo dyes) appears on 98 US grants and 19 published applications in this corpus.
Search patents in G03G- Granted patents
- 98
- Published applications
- 19
- Assignees
- 26
- Inventors
- 197
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 3 | 1 |
| 2013 | 4 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Electrophotographic photoreceptor, production method therefor, electrophotographic photoreceptor cartridge, and image forming apparatus18 Mar 2025US 12,253,823 B2Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus23 Nov 2021US 11,181,837 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, image forming apparatus, and coating liquid for forming photosensitive layer10 Dec 2019US 10,503,088 B2Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor, image forming apparatus, and coating liquid for forming photosensitive layer5 Feb 2019US 10,197,928 B2Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor and image-forming apparatus17 Dec 2013US 8,609,309 B2Mitsubishi Chemical Corporation
- Electrophotographic Photoreceptor, Production Method Therefor, Electrophotographic Photoreceptor Cartridge, and Image Forming Apparatus10 Feb 2022US 2022/0043363 A1Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus31 Dec 2020US 2020/0409279 A1Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, image forming apparatus, and coating liquid for forming photosensitive layer11 Apr 2019US 2019/0107790 A1Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor, image forming apparatus, and coating liquid for forming photosensitive layer24 Aug 2017US 2017/0242353 A1Mitsubishi Chemical Corporation
- Photoconductive layer with adjustable electrical property8 Dec 2016US 2016/0357108 A1Green Rich Technology Co., Ltd.
Most cited
By later US patents
- Electrophotographic photoconductor containing disazo and trisazo pigments82US 5,578,405 ARicoh Company, Ltd. · 1996
- Positively-chargeable single-layered type electrophotographic photoconductor64US 5,492,784 ARicoh Company, Ltd. · 1996
- Electrophotographic photoreceptor comprising azo compounds51US 4,618,555 AMitsubishi Chemical Ind., Ltd. · 1986
- Photosensitive member containing an azo dye44US 5,077,164 AMinolta Camera Kabushiki Kaisha · 1991
- Electrophotographic photoconductor33US 5,677,094 ARicoh Company, Ltd. · 1997