■ 2007 Toshiaki Ikohagi (Tohoku University) ■ 2006 Tomohide Niimi (Nagoya University)> ■ 2005 Ryutaro Himeno (RIKEN) ■ 2004 Kozo Fujii (ISAS/JAXA) ■ 2003 Hiroshi Hayami (Kyushu University) ■ 2002 Yutaka Tsuji (Osaka University)