Number | Name | Date | Kind |
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4859255 | Fujimura et al. | Aug 1989 |
Number | Date | Country |
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0311049 | Apr 1989 | EPX |
Entry |
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Nikkei New Materials, Jul. 9, 1990, p. 31. |
Nihon Kogyo Shinbun (Japan Industrial News), Jun. 14, 1990. |
Koichi Yajima, "Refractory Neodium Base Sintered Magnets", MotorTech Japan '91/New Magnetic Materials and Their Application, Feb. 28, 1991, Session A-3, pp. 1-1-1-8. |