	US 11,742,117 B2
	Iron nitride permanent magnet and technique for forming iron nitride permanent magnet
Jian-Ping Wang, Shoreview, MN (US); Shihai He, Fremont, CA (US); and Yanfeng Jiang, Minneapolis, MN (US)
Assigned to Regents of the University of Minnesota, Minneapolis, MN (US)
Filed by Regents of the University Of Minnesota, Minneapolis, MN (US)
Filed on Jun. 8, 2018, as Appl. No. 16/3,428.
Application 16/003,428 is a division of application No. 14/238,835, granted, now 10,068,689, previously published as PCT/US2012/051382, filed on Aug. 17, 2012.
Claims priority of provisional application 61/524,423, filed on Aug. 17, 2011.
Prior Publication US 2018/0294078 A1, Oct. 11, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. H01F 1/01 (2006.01); B32B 15/01 (2006.01); C21D 1/76 (2006.01); C23C 8/26 (2006.01); C23C 8/80 (2006.01); C22C 38/00 (2006.01); H01F 1/047 (2006.01); B22D 11/06 (2006.01); H01F 41/02 (2006.01); H01F 7/02 (2006.01)

CPC H01F 1/01 (2013.01) [B22D 11/0622 (2013.01); B22D 11/0651 (2013.01); B32B 15/011 (2013.01); C21D 1/76 (2013.01); C22C 38/001 (2013.01); C23C 8/26 (2013.01); C23C 8/80 (2013.01); H01F 1/047 (2013.01); H01F 7/021 (2013.01); H01F 41/0253 (2013.01); H01F 41/0273 (2013.01)]

21 Claims

1. A permanent magnet comprising a Fe₁₆N₂phase constitution, wherein the permanent magnet is thicker than 1 millimeter in its smallest dimension, wherein the permanent magnet has an energy product of greater than about 30 MGOe.