Biological information (pH/EC) sensor device for quantitatively monitoring plant health conditions. - Ryosuke Izumi; Akihito Ono; Hiroki Ishizuka; Kyohei Terao; Hidekuni Takao; Tsuyoshi Kobayashi; Ikuo Kataoka; Fusao Shimokawa (IEEE SENSORS, 2017)

A Sightseeing Guidebook Automatic Generation Printing System According to the Attribute of Tourist (KadaTabi). - Ryosuke Izumi; Takayuki Kunieda; Yusuke Kometani; Naka Gotoda; Rihito Yaegashi (JCKBSE, 2018)

Supporting System for Visiting Sightseeing Spot Using Image Recognition and Processing Technology (KadaBingo). - Soma Ishikawa; Ryosuke Izumi; Hiroki Asakimori; Satoru Yamada; Takayuki Kunieda; Yusuke Kometani; Naka Gotoda; Rihito Yaegashi (JCKBSE, 2020)