Cosmacini was born in Milan on 08/21/1939. He graduated in architecture from the Polytechnic of Milan in 1967, with Industrial Design thesis. He carries out the first years of professional activity at the architect Frattini's study as a collaborator. In 1970 he opens his he studied in Milan, dealing with industrial design, advertising graphics and architecture. From 1971 to 1975 he is part of the Dam group (Designers Associati Milan) with the study G.14 and the architect A.Colombi, signing various ideological and programmatic posters on design and organizing a great exhibition of group products in Milan at the Center Domus. He designs and manufactures lamps, handles, furnishing objects, household, cutlery, padded, chairs, tables, furniture, fabrics, electronic products, technical lamps and technical devices for hospitals, for the most important companies in the sector. He receives the following awards: Targa of honor with gold medal at the Abet Print competition for the closet (1968), merit diploma Saint Gobain competition for objects made with the use of the Parsol Ambra crystal (1976), a merit diploma Institute of Business Designers Design Award for the Diva lamp produced by Artiluce Flos (1987). In 1985 he was selected by ADI for the golden compass with the Desk model for operating lamp produced by Artiluce Flos. In 2004 he was reported by ADI for the golden compass with the New Three Stars ophthalmic meeting produced by Frastema. He also designed private homes, shops, public places and corporate offices throughout Italy and abroad. /