The 30th International Symposium on Superconductivity (ISS2017) will be held at the Iino Hall and Conference Center, Tokyo, Japan, on December 13−15, 2017. It is situated on the forth floor of the Iino Building, which was rebuilt and opened in October 2011. The Iino Building is directly connected to the Kasumigaseki Station (Tokyo Metro Chiyoda Line) and only 3 minutes walk from the Toranomon Station (Tokyo Metro Marunouchi Line), located by a quiet government office district in the heart of Tokyo. You may have a pleasant walk in an adjacent park, Hibiya Park. Also, you can enjoy shopping in the Ginza area that is just within a walking distance.
You can find appropriate hotels using such websites
You can get information for sightseeing, shopping and dining using such websites as shown below.