Related by context. Frequent words. (Click for all words.) 54 Hiroaki 52 Kunihiko 52 Junji 52 Hitotsubashi University 51 Nagao 51 Tatsuo 51 Matsuno 51 Nobuo 51 Aizawa 51 Inagaki 50 Yasui 49 Michio 49 Keio University 49 Koichiro 49 Yasuhiko 49 Hirakawa 49 Koyanagi 48 Harumi 48 Kanako 48 Fumio 48 Takeshita 48 Masayoshi 48 Masahiko 48 Murase 48 Hotta 48 Tetsuro 48 Yoshikazu 48 Nishio 48 Masaru 48 Takizawa 48 Waseda University 48 Tokyo Waseda University 48 Yonsei 48 Kageyama 47 Ishizuka 47 Jason Clenfield 47 Mitsuo 47 Hirokazu 47 Horii 47 Keisuke 47 Tadashi 47 Ryoko 47 Ryuichi 46 Hideyuki 46 Yoshiko 46 Iijima 46 Yoshinori 46 Imai 46 prestigious Tsinghua 46 Shuji 46 Tomoyuki 46 Moriyama 46 Kuriyama 46 Hamano 46 Fumi 46 Kyung Hee University 46 Nagasawa 46 Carl Freire 46 Sachiko Sakamaki 46 Sakae 46 Mitsuru 46 Toshiaki 45 Naoko 45 Eguchi 45 National Astronomical Observatory 45 Atsuko 45 Hatano 45 Otsuki 45 Minami 45 Imamura 45 Tokyo 45 Gakuen 45 Yoshihiro 45 Yuichi 45 Gadjah Mada University 44 Shigeru Sato 44 Toshiro Hasegawa 44 Akihiko 44 Takemura 44 Toyama 44 Yoshimi 44 Chiaki 44 Mukai 44 Nozaki 44 Akira 44 RIKEN 44 Tetsu 44 Waseda 44 Naoko Fujimura 44 Kitamura 44 Yasuhiro 44 Takashi 44 Hiroyuki 44 Miyuki 44 Kurokawa 44 Naoki 44 Nozawa 44 Eiji 44 Tomoko 44 Masatoshi 44 Ikeda