Japan's chief negotiator reached an agreement with U.S. Commerce Secretary Howard Lutnick in mid-June on a deal offering massive Japanese investment in the United States in exchange for a reduction in tariffs, sources close to the matter said Saturday.Over the following month, Japan focused on convincing U.S. President Donald Trump through Lutnick of the advantages of the agreement, with the proposal of expanding imports of U.S.-grown rice used as the final bargaining chip.The trade deal, announced by Trump on July 22, includes a cut in tariffs on Japanese cars to 15 percent from 27.5 perce…READ FULL ARTICLE