| Mar. 1990 | Graduated from the Hitotsubashi University |
| Apr. 1990 | Joined the Ministry of Foreign Affairs (MOFA) |
| Feb. 2002 | Principal Deputy Director, Technical Cooperation Division, Economic Cooperation Bureau, MOFA |
| Apr. 2004 | First Secretary, Embassy of Japan in Malaysia |
| Aug. 2006 | First Secretary, Permanent Mission of Japan to the International Organizations in Geneva |
| Jan. 2007 | Counsellor, Permanent Mission of Japan to the International Organizations in Geneva |
| Jul. 2009 | Counsellor, Permanent Delegation of Japan to the OECD |
| Oct. 2009 | Director, Division of Asia Pacific Latin America, International Energy Agency (Paris, France) |
| Jul. 2013 | Senior Coordinator, Human Rights and Humanitarian Affairs Division, Foreign Policy Bureau, MOFA |
| Aug. 2013 | Director, Human Rights and Humanitarian Affairs Division, Foreign Policy Bureau, MOFA |
| Jun. 2015 | Counsellor, Secretariat of the International Peace Cooperation Headquarters |
| Aug. 2017 | Minister, Embassy of Japan in Brazil |
| Oct. 2019~ | Deputy Assistant Minister / Deputy Director-General, Foreign Policy Bureau |
Mr. YAMANAKA Osamu
Deputy Assistant Minister,
Foreign Policy Bureau, Ministry of Foreign Affairs of Japan,
JAPAN