April 1985 - Joined the Company

July 2013 - Executive Manager of the Medium-term Management Strategies Promotion Office of the Corporate Strategy Planning Department of Nippon Telegraph and Telephone East Corporation

June 2014 - Senior Vice President

Executive Manager of the Plant Planning Department of the Network Business Headquarters

Member of the Board of Nippon Telegraph and Telephone East Corporation

July 2017 - Senior Vice President

Executive Manager of the Plant Planning Department of the Network Business Headquarters and Tokyo Olympic & Paralympic Promotion Office

Member of the Board of Nippon Telegraph and Telephone East Corporation

June 2018 - Senior Executive Vice President

Senior Executive Manager of the New Business Development Headquarters

Member of the Board of Nippon Telegraph and Telephone East Corporation

July 2019 - Senior Executive Vice President

Senior Executive Manager of the New Business Development Headquarters and the Digital Transformation Headquarters

Member of the Board of Nippon Telegraph and Telephone East Corporation

June 2020 - Senior Executive Vice President

Representative Member of the Board of the Company (present post)