A native of Uwajima, Ehime and graduate of Keio University, Yamamoto was the son of Yuichi Yamamoto, the mayor of Uwajima, and a member of the House of Representatives.
Yamamoto was elected to his one term in the assembly of Aichi Prefecture in 1991 and to the House of Representatives for the first time in 1993.
Parliamentary Vice-Minister of Environment(Hashimoto Cabinet)
Senior Vice-Minister for Internal Affairs and Communications(Koizumi Cabinet)
Deputy Chairman, General Council of LDP
Director, Land, Infrastructure and Transport Division of LDP
Chairman, Fundamental National Policies Committee of Diet
Koichi Yamamoto died on October 31, 2023, at the age of 76.[2]
Positions
Affiliated to the openly revisionist lobby Nippon Kaigi,[3] Yamamoto gave the following answers to the questionnaire submitted by Mainichi to parliamentarians in 2012:[4]
in favor of the revision of the Constitution
in favor of right of collective self-defense (revision of Article 9)