| 2021 | IGARSS | Some Improvements in the GSMaP_Gauge Algorithm. | Tomoaki Mega, Tomoo Ushio, Takuji Kubota, Tomoko Tashima |
| 2021 | IGARSS | Improvement of the GSMaP Precipitation Retrieval Algorithm for Microwave Sounders Over Coast. | Tomoko Tashima, Takuji Kubota, Tomoaki Mega, Shoichi Shige |
| 2019 | IGARSS | High Resolution GSMaP with Himawari 8. | Tomoo Ushio, Tomoaki Mega |
| 2018 | IGARSS | Recent Progress on the GSMaP Multi -satellite Algorithm. | Tomoaki Mega, Tomoo Ushio |
| 2016 | IGARSS | Near real time product of the gauge adjusted GSMaP (GSMaP_Gauge_NRT). | Tomoo Ushio, Tomoaki Mega, Takuji Kubota, Misako Kachi |
| 2014 | IGARSS | Recent improvements in the global satellite mapping of precipitation (GSMaP). | Misako Kachi, Takuji Kubota, Kazumasa Aonashi, Tomoo Ushio, Shoichi Shige, Munehisa Yamamoto, Tomoaki Mega, Riko Oki |
| 2011 | IGARSS | Initial observation results for precipitation on the Ku-band broadband radar network. | Eiichi Yoshikawa, Satoru Yoshida, Takeshi Morimoto, Tomoo Ushio, Zen Kawasaki, Tomoaki Mega |
| 2008 | IGARSS | Development and Observation of the Ku-band Broad-Band Radar for Meteorological Application. | Eiichi Yoshikawa, Tomoaki Mega, Takeshi Morimoto, Tomoo Ushio, Zen Kawasaki |
| 2005 | IGARSS | Development and observation of the broad-band radar for meteorological application. | Kazushi Monden, Tomoaki Mega, Tomoo Ushio, Ken'ichi Okamoto |