专利名称：Magnetic particles, method for making and
electromagnetic clutch using same
发明人：Hideharu Moro,Yoshikazu Narumiya申请号：US07/187235申请日：19880428公开号：US04882224A公开日：19891121
摘要：Magnetic particles comprising a magnetic core and a shell covering the core areprovided wherein the shell is formed from titanium nitride, titanium carbide, aluminumnitride, aluminum oxide, zirconium oxide, silicon nitride, silicon carbide, or a mixturethereof by plasma- assisted chemical vapor deposition while vibrating the core.
申请人：TDK CORPORATION
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt
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