Tokyo University of Science, Kagurazaka Campus, (Bldg. Nos.2 & 8)
http://www.tus.ac.jp/en/campus/kagurazaka.html
Three minutes’ walk from JR Iidabashi Station (West Exit), or Tokyo Metro Iidabashi Station (B3 Exit). Find the station Iidabashi in the center area of the map below;
http://www.jreast.co.jp/e/info/map_a4ol.pdf
(The Haneda International Airport is located in the lower center area, while Narita International Airport is found in the middle of the right edge.)
Less than 20-30 min from the most of the major JR stations (Tokyo, Ueno, Shinjuku, Shibuya, Ikebukuro)