Denso Corp. said Tuesday U.S. tariffs on imported cars and auto parts, if invoked, could result in some 70 to 80 billion yen ($630 million to $720 million) in additional costs each year."It is a very worrying factor," Executive Director Yasushi Matsui of the Japanese auto parts supplier, a group company of Toyota Motor Corp., told a press conference. "We hope that fair trade rules will be maintained."In May, U.S. President Donald Trump launched an investigation into whether auto imports have posed a threat to national security. The United States could reportedly slap additional tariffs of a…READ FULL ARTICLE