- born in 1911 Varedo, Switzerland
- died in 1985 Milano, Italy
Had a twin brother, Fulgenzio, who was by his side for his whole career.
studied architecture in Politecnico di Milano.
In 1933, while still a student, presented his "Casa Minima" project in the fifth Milan Triennale.
After graduation, joined the family business, Atelier Varedo (later Arredamento Borsani) as a furniture designer.
In 1953, with his brother Fulgenizo, founded Tecno, a firm which as it name suggests, became known for its technology and research-based approach to furniture design.
In 1954, presented the Butterfly long seat D70 in the 10th Milan Triennale.
In 1955, issued one of his best known furniture piece, the P40 chaise longue.
Was the sole designer of Tecno for over 30 years; Gae Aulenti, Norman Foster and other designers began to contribute designs starting from mid 1980s.
In 1962, received Premio Compasso d'Oro.
in 1968, at the 14th Triennale, presented the Graphis office system.
In 1970, together with Marco Fantoni and Valeria Borsani, created the "Centro Progetti tecno", a laboratory where various projects of different natures would be able to be developed from A to Z.
Died on April 16th, 1985 in Milano.
D70 Sofa, 1954, for Tecno
P40 Chaise Longue, 1955, for Tecno
P31 Armchair, 1957, for Tecno
Graphis Office System, 1968, for Tecno
T69 Table, 1963, for Tecno
S-PS148 Chair and Armchair, 1980, for Tecno
Museum of Modern Art (New York)
Victoria & Albert Museum (London)
Centre Pompidou (Paris)
Die Neue Sammlung (Munich)