LET National Conference Office
c/o Prof. Takeo Koganei
Toyo Gakuen University
1660 Hiregasaki
Nagareyama City
Chiba, 270-0161
Japan
LET International Conference Office
c/o Prof. Akio Iwasaki
Tokyo International University
1-31-1 Matobakita
Kawagoe City
Saitama, 350-1197
Japan