TSUNODA Takashi (twelvetone) Born in 1975 in Gunma prefecture.Worked as a game designer and toy designer before founding twelvetone. Currently manages the outdoor brand YOKA while working on idontknow.tokyo once a week.

HARUTA Masayuki (TENT) Born in 1971 in Yokohama. After working in a design office and for a manufacturer of sundries, founded TENT. Now engaged in a variety of activities centered on product design. Works on idontknow.tokyo once a week.

AOKI Ryosaku (TENT) Born in 1979 in Nagoya. Founded TENT after working at Olympus and Sony. Now carrying a variety of activities, centered on product design. Works on idontknow. tokyo once a week.