A Lower Bound for Testing 3-Colorability in Bounded-Degree Graphs. - Andrej Bogdanov; Kenji Obata; Luca Trevisan 001 (FOCS, 2002)

Optimal Lower Bounds for 2-Query Locally Decodable Linear Codes. - Kenji Obata (RANDOM, 2002)

Approximate max-integral-flow/min-multicut theorems. - Kenji Obata (STOC, 2004)

Implementation of Wireless Sensor System and Interface for Agricultural Use. - Kenji Obata; Takahiro Masui; Hiroshi Mineno; Tadanori Mizuno (KES (2), 2009)

Adaptive Home/Building Energy Management System Using Heterogeneous Sensor/Actuator Networks. - Hiroshi Mineno; Yuichiro Kato; Kenji Obata; Hiroshi Kuriyama; Keiichi Abe; Norihiro Ishikawa; Tadanori Mizuno (CCNC, 2010)

Development of a wireless sensor network for visualizing agricultural knowledge. - Hiroshi Mineno; Kenji Obata; Takahiro Masui; Keiichi Abe; Tadanori Mizuno (Intell. Decis. Technol., 2010)