Related by context. Frequent words. (Click for all words.) 58 Tokyo 54 Keisuke 54 Keio University 53 Gifu 52 RIKEN 52 Nagoya 52 Hiroaki 51 Hiroshi 51 Hiroyuki 51 prefectural governments 51 Japan 51 Shigeru 51 Yoshikawa 50 Kaneko 50 Waseda 50 Mitsuo 50 Masayuki 50 Takashi 50 Tsukuba 50 Osaka 50 Yutaka 50 Toshiaki 49 Fumio 49 Chuo 49 Michio 49 Shinichi 49 Yasuo 49 Ehime 49 Minami 49 Kitamura 49 Atsuko 49 Iijima 48 Yoshihiro 48 Yukiko 48 Yoshiyuki 48 Masashi 48 Kanazawa 48 Naoki 48 Masaru 48 Yamamoto 48 Takahiro 48 Noboru 48 Yasuhiro 48 Satoshi 48 Tadashi 48 Okayama 48 Atsushi 48 Yuichi 48 Naoko 48 Masanori 48 Osamu 48 Nishi 48 Takuya 48 Yoshiaki 48 Yasuko 48 Junichi 48 Yasushi 48 Hyogo 48 Masami 48 Hajime 47 Masahiko 47 Toshiyuki 47 Hashimoto 47 Japanese 47 Aomori Prefecture 47 Tottori 47 Yasuda 47 Miwa 47 Waseda University 47 Mainichi 47 Nagaoka 47 Kataoka 47 Nobuo 47 Imai 47 Fukuoka 47 Takagi 47 Takao 47 Tanaka 47 Toyama 47 Yamaguchi 47 Kazuhiro 47 Yuko 47 Prefectural 47 Chiba 47 Tomoko 46 Takeshi 46 Mitsuru 46 Hideaki 46 Koichi 46 Sugita 46 Tohoku 46 Hisashi 46 Miyuki 46 Yoshinori 46 Kazuhiko 46 Hideo 46 Keiichi 46 Tetsuya 46 Higuchi 46 Kenichi 46 Naoto