Washington, Sept. 8 (Jiji Press)--Hitachi Ltd. President and CEO Toshiaki Tokunaga said Monday that the major Japanese heavy machinery maker plans to expand its investment in the United States. Noting that the company invested more than 12 billion dollars in the United States in the five years through 2024, Tokunaga said at a press conference, "We want to spend the same amount or more" by ar...