Tanaka Kikinzoku Kogyo K.k.

Tanaka Holdings Co., Ltd

Kiyoshi Higuchi

Toshiya Yamamoto

Yasuyuki Goto

Takanobu Miyashita

A target consisting essentially of a CoCrPt-based metal or a CoCrPtRu-based metal, and one or more metal oxides selected from the group consisting of SiO, CrO, CoO, TiOand TaO, is heated in an upper crucible of a two-level crucible that includes the upper crucible with a through hole formed in a bottom surface, and a lower crucible disposed below the through hole. The target is heated at a temperature of from 1400 to 1790&#xb0; C. if the target does not contain both TiOand TaO. The target is heated at a temperature of from 1400 to 1630&#xb0; C. if the target contains TiObut does not contain TaO. The target is heated at a temperature of from 1400 to 1460&#xb0; C. if the target contains TaO. The metal thereby melted is caused to flow into the lower crucible, so that the metal is separated from the metal oxide.

Method for recovering metal from target and method for manufacturing target

In the method for recovering a metal from a target that contains a metal and a metal oxide, the target contains a sintered body of the metal oxide after being heated under a condition of melting the metal without melting or decomposing the metal oxide. The target is heated in an upper crucible of a two-level crucible that includes the upper crucible with a through hole-formed in a bottom surface thereof, and a lower crucible disposed below the through hole, the size of the through hole being set such that it does not allow the sintered body of the metal oxide contained in the target to pass therethrough, and the melted metal is caused to flow into the lower crucible, so that the metal is separated from the metal oxide.

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Tsukuba, Japan

Kiyoshi Higuchi