TOKYO (AP) — Tokyo Olympic organizers have signed up Nippon Telegraph and Telephone Corporation as the first domestic sponsor of the 2020 Games. NTT, which provided a variety of telecommunications services for the 1964 Tokyo Olympics, will be the organizing committee's official telecommunications services partner. Tokyo organizers and NTT did not release financial terms of the deal. NTT is the largest telecommunications company in the world in terms of revenue.Read more on NewsOK.com