GAMMA - NET: Computer network coupled by 100 MBPS Optical Fiber Ring Bus - system planning and Ring Bus subsystem description. - Katsuo Ikeda; Yoshihiko Ebihara; Michihiro Ishizaka; Takao Fujima; Tomoo Nakamura; Kazuhiko Nakayama (Operating Systems Engineering, 1980)

GAMMA-NET: A Local Computer Network Coupled by a High Speed Optical Fiber Ring Bus -System Concept and Structure. - Yoshihiko Ebihara; Katsuo Ikeda; Tomoo Nakamura; Michihiro Ishizaka; Makoto Shinzawa; Kazuhiko Nakayama (Comput. Networks, 1983)

Fault Diagnosis and Automatic Reconfiguration for a Ring Subsystem. - Yoshihiko Ebihara; Katsuo Ikeda; Tomoo Nakamura; Shigeo Nakatsuka; Michihiro Ishizaka (Comput. Networks, 1986)

Information delivery tactile pavings using visible light communication. - Kuniyoshi Okuda; Shohei Oda; Tomoo Nakamura; Wataru Uemura (ICCE, 2014)