C04B 35/2691
Other ferrites containing alkaline metals
Official title: {Other ferrites containing alkaline metals}
C04B35/2691 (Other ferrites containing alkaline metals) appears on 11 US grants and 5 published applications in this corpus.
Search patents in C04B- Granted patents
- 11
- Published applications
- 5
- Assignees
- 9
- Inventors
- 19
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 3 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- M-type hexaferrite having a planar anisotropy23 Sep 2025US 12,424,362 B2Rogers Corporation
- Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus11 Feb 2014US 8,646,879 B2Seiko Epson Corporation
- Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus17 Dec 2013US 8,608,294 B2Seiko Epson Corporation
- Composite ferrite sheet, method of fabricating the composite ferrite sheet, and array of sintered ferrite segments used to form the composite ferrite sheet4 Dec 2012US 8,323,776 B2Maruwa Co., Ltd.
- Ferrite with high permeability and high dielectric constant and method for making the same27 May 2003US 6,569,346 B1Industrial Technology Research Institute
- Lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material and preparation method and application thereof25 Sep 2025US 2025/0300169 A1Yinzhu (Ningbo) Technology Limited
- M-type hexaferrite having a planar anisotropy2 Nov 2023US 2023/0352223 A1Rogers Corporation
- Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus19 Jul 2012US 2012/0182357 A1Seiko Epson Corporation
- Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus19 Jul 2012US 2012/0182358 A1Seiko Epson Corporation
- Composite ferrite sheet, method of fabricating the composite ferrite sheet, and array of sintered ferrite segments used to form the composite ferrite sheet12 Apr 2012US 2012/0088070 A1Maruwa Co., Ltd.
Most cited
By later US patents
- Fabrication of dual porosity electrode structure19US 4,992,341 AThe United States of America as represented by the United States Department of Energy · 1991
- All ceramic structure for molten carbonate fuel cell10US 5,139,896 AThe United States of America as represented by the United States Department of Energy · 1992
- Process of making shaped article of lithium ferrite containing phosphorus pentoxide with vanadium pentoxide or bismuth trioxide sintering agents7US 4,238,342 AAmpex Corporation · 1980
- Conductive ceramic composition and method of preparation5US 5,008,163 AThe United States of America as represented by the United States Department of Energy · 1991
- Sintered moulding, transformer core and inductor core of Li(Ni)Zn ferrite material, as well as applications thereof5US 6,002,211 AU. S. Philips Corporation · 1999