Related by context. Frequent words. (Click for all words.) 74 Tohoku 65 Nagaoka 64 Hiroaki 63 Tsukuba 63 Shigeru 62 Waseda University 62 Gifu 62 Keio University 61 Hyogo 61 Kyushu 61 Yoshihiro 61 Toyama 61 Niigata 61 Masaru 60 Kanazawa 60 Kanagawa 60 RIKEN 60 Hiroshi 60 Iwate Prefecture 60 Mie 60 Shizuoka Prefecture 59 Shinichi 59 Yukiko 59 Hiroyuki 59 Osaka Prefecture 59 Naoki 59 Hajime 59 Minami 59 Kagoshima 59 Nihon 59 Eiji 59 Imai 59 Satoshi 59 Takahiro 58 Osamu 58 Oita 58 Masao 58 Atsushi 58 Sendai 58 Yasuo 58 Saitama Prefecture 58 Yutaka 58 Masayuki 58 Nagoya 58 Takao 58 Shizuoka 58 Yasuhiro 58 Kitakyushu 57 Niigata Prefecture 57 Takashi 57 Hyogo Prefecture 57 Chiba Prefecture 57 Fujisawa 57 Kazuhiro 57 Kazuo 57 Tokai 57 Miyata 57 Koichi 57 Takayuki 57 Yuichi 56 Saitama 56 Hirose 56 Masashi 56 Miyagi Prefecture 56 Yoichi 56 Keiichi 56 Kanagawa Prefecture 56 Yoshikawa 56 Takeshi 56 Hideo 56 Takumi 56 Shikoku 56 Masaaki 56 Chuo 56 Toshio 56 Yokoyama 56 Higuchi 55 Sakurai 55 Riken 55 Iwate 55 Hokkaido 55 Naoko 55 Masaki 55 Usui 55 Shiga 55 Tatsuya 55 Matsushima 55 Koyama 55 Tokyo 55 Masahiro 55 Kitamura 55 Yamagata 55 Isao 55 Yoshimi 55 Kumamoto 55 Yokohama 55 Sachiko 54 Chiba 54 Hiroko 54 Yoshio 54 Tadashi