TSU.MI.KI: Stimulating Children's Creativity and Imagination with Interactive Blocks. - Yuichi Itoh; Shintaro Akinobu; Hiroyasu Ichida; Ryoichi Watanabe; Yoshifumi Kitamura; Fumio Kishino (C5, 2004)

Implementation of ActiveCube as an Intuitive 3D Computer Interface. - Ryoichi Watanabe; Yuichi Itoh; Michihiro Kawai; Yoshifumi Kitamura; Fumio Kishino; Hideo Kikuchi (Smart Graphics, 2004)

The soul of ActiveCube: implementing a flexible, multimodal, three-dimensional spatial tangible interface. - Ryoichi Watanabe; Yuichi Itoh; Masatsugu Asai; Yoshifumi Kitamura; Fumio Kishino; Hideo Kikuchi (Comput. Entertain., 2004)

Distributed autonomous interface using ActiveCube for interactive multimedia contents. - Ryoichi Watanabe; Yuichi Itoh; Yoshifumi Kitamura; Fumio Kishino; Hideo Kikuchi (ICAT, 2005)

A Collaborative Interface for the IllusionHole using a Control-Ring and a Set of Mice. - Martin Hachet; Ryoichi Watanabe; Yoshifumi Kitamura (3DUI, 2006)

m-ActiveCube; Multimedia Extension of Spatial Tangible User Interface. - Kyoko Ueda; Atsushi Kosaka; Ryoichi Watanabe; Yoshinori Takeuchi; Takao Onoye; Yuichi Itoh; Yoshifumi Kitamura; Fumio Kishino (BioADIT, 2006)