G03G 9/107
Having magnetic components
Official title: having magnetic components
G03G9/107 (Having magnetic components) appears on 704 US grants and 585 published applications in this corpus.
Search patents in G03G- Granted patents
- 704
- Published applications
- 585
- Assignees
- 96
- Inventors
- 1,170
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 15 | 0 |
| 1990 | 13 | 0 |
| 1991 | 5 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 17 | 0 |
| 1995 | 11 | 0 |
| 1996 | 24 | 0 |
| 1997 | 19 | 0 |
| 1998 | 17 | 0 |
| 1999 | 11 | 0 |
| 2000 | 32 | 0 |
| 2001 | 18 | 4 |
| 2002 | 12 | 15 |
| 2003 | 17 | 23 |
| 2004 | 12 | 16 |
| 2005 | 5 | 16 |
| 2006 | 8 | 31 |
| 2007 | 12 | 28 |
| 2008 | 16 | 24 |
| 2009 | 18 | 26 |
| 2010 | 12 | 35 |
| 2011 | 22 | 29 |
| 2012 | 24 | 31 |
| 2013 | 33 | 31 |
| 2014 | 43 | 28 |
| 2015 | 21 | 19 |
| 2016 | 20 | 27 |
| 2017 | 31 | 28 |
| 2018 | 20 | 21 |
| 2019 | 24 | 28 |
| 2020 | 22 | 16 |
| 2021 | 17 | 11 |
| 2022 | 1 | 30 |
| 2023 | 10 | 19 |
| 2024 | 11 | 20 |
| 2025 | 17 | 9 |
| 2026 | 8 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carrier core material and electrophotographic development carrier using same and electrophotographic developer6 Oct 2026US 12,754,491 B2Dowa Electronics Materials Co., Ltd.
- Carrier core material, and electrophotographic development carrier and electrophotographic developer using same28 Jul 2026US 12,693,608 B2Dowa Electronics Materials Co., Ltd.
- Toner and two-component developer14 Jul 2026US 12,681,401 B2Canon Kabushiki Kaisha
- Carrier for electrophotographic image formation, developer for electrophotographic image formation, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge7 Jul 2026US 12,675,063 B2Ricoh Company, Ltd.
- Electrostatic charge image developer, developer cartridge, process cartridge, image forming apparatus, and image forming method23 Jun 2026US 12,663,735 B2FUJIFILM Business Innovation Corp.
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310111 A1KYOCERA Document Solutions Inc.
- Developer set and image forming apparatus24 Sep 2026US 2026/0288026 A1KYOCERA Document Solutions Inc.
- Two-component developer, developer set, developing device, and image forming apparatus24 Sep 2026US 2026/0288027 A1KYOCERA Document Solutions Inc.
- Developer set and image forming apparatus24 Sep 2026US 2026/0288028 A1KYOCERA Document Solutions Inc.
- Toner, method for producing toner, two-component developer containing toner, and image forming device using toner24 Sep 2026US 2026/0288029 A1Sharp Kabushiki Kaisha
Most cited
By later US patents
- Two-component, dry electrographic developer compositions containing hard magnetic carrier particles and method for using the same138US 4,546,060 AEastman Kodak Company · 1985
- Preparation of spheroidized particles86US 4,076,640 AXerox Corporation · 1978
- Two-component developer, container filled with the two-component developer, and image formation apparatus80US 6,468,706 B2Ricoh Company, Ltd. · 2002
- Carrier for image developer for electrophotography77US 6,406,826 B1Ricoh Company, Ltd. · 2002
- Process for developing electrographic images by causing electrical breakdown in the developer74US 4,076,857 AEastman Kodak Company · 1978