| US 7,413,589 B2 | ||
| Method of producing hydrogen storage alloy | ||
| Hironobu Arashima, Muroran (Japan); Takashi Ebisawa, Muroran (Japan); and Hideaki Itoh, Muroran (Japan) | ||
| Assigned to The Japan Steel Works, Ltd., Tokyo (Japan) | ||
| Filed on Sep. 27, 2005, as Appl. No. 11/235,185. | ||
| Application 11/235185 is a division of application No. 10/394274, filed on Mar. 24, 2003. | ||
| Claims priority of application No. P2002-80199 (JP), filed on Mar. 22, 2002. | ||
| Prior Publication US 2006/0027041 A1, Feb. 09, 2006 | ||
| Int. Cl. C22C 1/02 (2006.01); C22B 4/06 (2006.01) | ||
| U.S. Cl. 75—10.11 [420/900; 420/590; 148/538] | 4 Claims |
| 1. A method of producing a homogenized hydrogen storage alloy comprising the steps of:
at least partially melting and homogenizing a hydrogen storage alloy in a floating zone melting furnace; and
gradually cooling at a cooling rate of 5° C./min. or less to thereby solidify and recover a homogenized hydrogen storage alloy.
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