Zul Ilham, Indrani Subramaniam, Adi Ainurzaman Jamaludin, Wan Abd Al Qadr Imad Wan-Mohtar, Sarina Abdul Halim-Lim, Hideaki Ohgaki, Keiichi Ishihara, Mohd Radzi Abu Mansor. Analysing dimensions and indicators to design energy education framework in Malaysia using the analytic hierarchy process (AHP). Energy Reports. 2022. 8. 1013-1024
Ryusei Morimoto, Takaya Ogawa, Koichi Ueno, Hideyuki Okumura, Keiichi Ishihara. Enhanced catalytic activity of ammonia synthesis over Ru/CaH2 by addition of oxygen. 2022
Takaya Ogawa, Yoko Imamura, Masaki Yoshida, Keiichi N. Ishihara, Ryuichi Fukuhara, Maisa'a W. Shammout, Mohammad R. Shatanawi, Eiji Yamasue. Life Cycle Assessment of CO2 emission from Multigeneration of Water-Electricity-Ammonia Scheme using Sunlight in arid/semi-arid region and Seawater through Pipeline. 2022
Takaya Ogawa, Yuekai Zhao, Hideyuki Okumura, Keiichi N. Ishihara. Enhanced Photocatalytic Activity of TiO2 Thin Film Deposited by Reactive RF Sputtering under Oxygen-Rich Conditions. Photochem. 2022. 2. 1. 138-149
Keiichi N. Ishihara. Fundamentals to applications of mechanical alloying and milling, and spark plasma sintering. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 2020. 67. 2. 48
Potential of GHG Mitigation in Protected Tomato Cultivation by Agriphotovoltaic Technology. Grand Renwaable Energy 2018, Yokohama, June 17-22, Japan. 2018
Green House Gases (GHG) Mitigation in Protected Cultivation by Agrivoltaic TEchnology
(Regional Congress on Membrane Technology 2020, Regional Conference Environmental Engineering 2020 2021)
Marginal Cost of Solar PV Implementation Caused by Curtailment in Kyushu Region in Japan
(2019)