WEBOfficial website. Clinton and Gemba. Kōichirō Genba (玄葉 光一郎, Genba Kōichirō, born 20 May 1964) is a Japanese politician who served as Minister for Foreign Affairs from 2011 to 2012. He is a member of the House of Representatives in the Diet, and was a member to the Democratic Party of Japan and its successor Democratic Party until ...