Aramassa earned a BA in Graphic Design from Musashino Art College, Musashinoshi, Tokyo, in 1960.
In 1960, and set up a design company in which he was an art director, but became a freelance in 1970. He worked as a fashion photographer in Paris from 1973 to 1976. In 1980 he met his parents, from whom he had been separated, and started work on a photographic contribution to the effort of reuniting Japanese war orphans and their biological parents. This work branched into the photography of people of Japanese descent in Hawai'i and South America. Aramasa has taught at Musashino Art University from 1993.
he belongs to the Japan Photographers' Society and Tokyo Designers' Space.