Current page


TRIAD was completed in 2002 on the Hotaka Plant grounds of Harmonic Drive Systems Inc., where I, Mitsumasa Ito, serve as Representative Director. TRIAD consists of three buildings: TRIAD IIDA-KAN art gallery exhibiting the works of Yoshikuni Iida; I.K KAN research building built as a prototype for our production and measurement environment; and a guardhouse.

  • This operation is currently undertaken by Harmonic Ito Foundation.

Read a sketch of the life of one of Japan's leading post-war sculptors, the highly innovative Yoshikuni Iida, including a list of his exhibits, awards, and works.

Learn about the TRIAD, a cluster of three buildings on the site of our Hotaka Plant and designed by Maki and Associates.

See an overview of IIDA KAN, located in the natural environment of Hotaka with its abundant snowfall, and featuring a twin-leaf roof that has no gutters but is structured so that rainfall descends in one place. It was designed by Maki and Associates.

Find out the days and times when the gallery is open and how to reach it by transportation. It is open to the public free of charge.