A detachable IPsec device for secure consumer communication. - Kei Karasawa; Yusuke Kira; Yoshitsugu Tsuchiya; Kohji Yamada; Kenji Takahashi (CCNC, 2005)

A new remote configurable firewall system for home-use gateways. - Shintaro Mizuno; Katsunori Matsuura; Kohji Yamada; Kenji Takahashi (CCNC, 2005)

Authentication using multiple communication channels. - Shintaro Mizuno; Kohji Yamada; Kenji Takahashi (Digital Identity Management, 2005)

A Mobile Phone Based Authentication Service for Home Appliances. - Shintaro Mizuno; Takahiro Haruyama; Kohji Yamada; Osamu Mizuno (CCNC, 2007)

Swift Estimation Method of Available Bandwidth to Realize Robust Wireless Video Transmission Systems. - Akihiro Wada; Tatsuya Kikuzuki; Kotaro Shiizaki; Kohji Yamada; Kaoru Yokoo; Teruhisa Ninomiya (VTC Spring, 2022)