G03G 15/1645
Arrangements for controlling the amount of charge
Official title: {Arrangements for controlling the amount of charge}
G03G15/1645 (Arrangements for controlling the amount of charge) appears on 145 US grants and 86 published applications in this corpus.
Search patents in G03G- Granted patents
- 145
- Published applications
- 86
- Assignees
- 39
- Inventors
- 344
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 12 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 5 |
| 2005 | 5 | 4 |
| 2006 | 3 | 4 |
| 2007 | 4 | 1 |
| 2008 | 3 | 4 |
| 2009 | 3 | 3 |
| 2010 | 2 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 7 |
| 2013 | 3 | 4 |
| 2014 | 4 | 5 |
| 2015 | 10 | 6 |
| 2016 | 4 | 1 |
| 2017 | 2 | 2 |
| 2018 | 6 | 5 |
| 2019 | 3 | 3 |
| 2020 | 3 | 2 |
| 2021 | 2 | 5 |
| 2022 | 2 | 3 |
| 2023 | 4 | 5 |
| 2024 | 2 | 5 |
| 2025 | 3 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus25 Aug 2026US 12,717,255 B2Canon Kabushiki Kaisha
- Image forming apparatus with control for setting transfer bias23 Jun 2026US 12,663,740 B2Canon Kabushiki Kaisha
- Image forming apparatus and method to form an invisible image and a visible image in a multi-pass simplex manner10 Jun 2025US 12,326,683 B2Ricoh Company, Ltd.
- Image forming apparatus6 May 2025US 12,292,707 B2KYOCERA Document Solutions Inc.
- Printing apparatus with leakage path for corona discharge7 Jan 2025US 12,189,316 B2Hewlett-Packard Development Company, L. P.
- Image forming apparatus24 Sep 2026US 2026/0288038 A1Canon Kabushiki Kaisha
- Image forming apparatus18 Sep 2025US 2025/0291282 A1Canon Kabushiki Kaisha
- Image forming system12 Dec 2024US 2024/0411247 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus21 Nov 2024US 2024/0385553 A1KYOCERA Document Solutions Inc.
- Image forming apparatus17 Oct 2024US 2024/0345511 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Image forming device with transfer unit47US 5,717,980 AMinolta Co., Ltd. · 1998
- Lead edge transfer switching46US 4,190,348 AXerox Corporation · 1980
- Corona deterioration and moisture compensation for transfer unit in an electrophotographic apparatus39US 5,291,253 AHitachi Koki Co., Ltd. · 1994
- Image transferring method using an intermediate transfer body and image forming apparatus for practicing the same38US 6,006,062 ARicoh Company, Ltd. · 1999
- Image forming apparatus34US 4,912,515 ACanon Kabushiki Kaisha · 1990