Masamichi and Sigi co-founded Antenna Design in 1997. In the public space, Antenna has extensive experience ranging from the design of NYC and Washington DC subway cars to automated ticket vending machines and public information kiosks, affecting the urban experience of millions of people daily. On the commercial side Antenna works with corporations to help them identify and design people-focused products and services. When addressing complex problems, such as technological change and the transformation of culture, public and private organizations value Antenna’s vision and approach to design, which is rooted in the belief that design is about shaping people’s behavior.

Antenna’s work has won numerous awards, including the National Design Award in Product Design from the Cooper-Hewitt, Smithsonian Design Museum in 2008. Antenna's "Help Point Intercom" for the NY Metropolitan Transportation Authority is included in the permanent collection of the Museum of Modern Art in New York.

Both Masamichi and Sigi have been active in design education for many years, giving workshops and lectures internationally. They are currently visiting faculty and critics at Yale University School of Art and at School of Visual Art in New York.

Before forming Antenna, Masamichi was a senior designer at Apple Computer Industrial Design Group. Masamichi holds an MFA from Cranbrook Academy of Art and a BE in industrial design from Chiba University in Japan.

Before forming Antenna, Sigi was an industrial designer at IDEO. Sigi holds an MPS in interactive telecommunications from New York University and a BS in industrial design from Art Center College of Design.