Ultracompact optical zoom lens for mobile phone. - Keiji Matsusaka; Sou Ozawa; Ryuichi Yoshida; Tomoyuki Yuasa; Yoshihito Souma (Digital Photography, 2007)

A new analysis method for simulations using node categorizations. - Tomoyuki Yuasa; Susumu Shirayama (Soc. Netw. Anal. Min., 2012)