(July 30, 2013) -- In the first case in the Justice Department’s antitrust investigation involving automobile parts sold to a company headquartered in the U.S., Diamond Electric Mfg. Co., an Osaka, Japan-based firm, has agreed to plead guilty and to pay a $19 million criminal fine for conspiring to fix prices of ignition coils installed in cars, the Justice Department announced on July 16. The parts were sold to Ford Motor Co....