Kazumasa Nagai was born in 1929 in Osaka. He left the Tokyo National University of Fine Arts and Music in 1951 and co-founded the Nippon Design Center in 1960. Nagai achieved notable recognition by winning first place in the design competitions for the official symbols of the Sapporo Winter Olympic Games (1966) and EXPO Okinawa (1972). Between 1960 and 1988, he received numerous prestigious awards, including the JAAC Award, Asahi Advertising Award, Mainichi Advertising Award, Yamana Award, and multiple accolades from the Tokyo ADC Show.