US 11,958,778 B2
Modified barium tungstate for co-firing
Michael David Hill, Emmitsburg, MD (US); David Bowie Cruickshank, Rockville, MD (US); Jeffrey Alan Shunkwiler, Adamstown, MD (US); John Jianzhong Jiang, Leesburg, VA (US); and David Martin Firor, Thurmont, MD (US)
Assigned to Allumax TTI, LLC, Ann Arbor, MI (US)
Filed by Allumax TTI, LLC, Ann Arbor, MI (US)
Filed on Feb. 14, 2023, as Appl. No. 18/109,796.
Application 18/109,796 is a continuation of application No. 16/387,343, filed on Apr. 17, 2019, granted, now 11,603,333.
Claims priority of provisional application 62/661,208, filed on Apr. 23, 2018.
Prior Publication US 2023/0303449 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 35/26 (2006.01); C04B 35/495 (2006.01); C04B 37/00 (2006.01); H01F 1/10 (2006.01); H01P 1/36 (2006.01); H01P 1/38 (2006.01); H01P 11/00 (2006.01)
CPC C04B 35/265 (2013.01) [C04B 35/495 (2013.01); C04B 37/001 (2013.01); H01F 1/10 (2013.01); H01P 1/36 (2013.01); H01P 1/38 (2013.01); H01P 11/003 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3222 (2013.01); C04B 2235/3239 (2013.01); C04B 2235/3256 (2013.01); C04B 2235/326 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3298 (2013.01); C04B 2235/9607 (2013.01); C04B 2237/84 (2013.01); Y10T 428/32 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A composite material for use in radiofrequency applications, the composite material comprising:
a high magnetization spinel structure; and
a barium tungstate structure surrounding the high magnetization spinel structure, the barium tungstate structure doped with a flux material having a firing temperature the same as or lower than a firing temperature of the high magnetization spinel structure.