Seino-san is one of the leaders of Open Source, Open Data and Debian community in Japan and also works on GIS application in Archaeology. He is engaged in teaching Open Source Geospatial Technologies at several national and international workshops. He is a very active user, developer, trainer and promoter of OSGeo Software and Open Data.
<- Thank you Arnulf-san!! YoichiSeino 19:50, 24 March 2014 (PDT)