Major listed Japanese companies are expected to see a fall in their combined net profit for the six months ended September, the first decline in four years, hit by a lull in the yen’s depreciation against the U.S. dollar, according to a tally by a securities house Thursday. The aggregate net profit of 577 firms listed on the top-tier Prime Market on the Tokyo Stock Exchange that had released earnings for the period by Wednesday fell 5.6 percent to around 14 trillion yen ($90 billion) from a year earlier, according to data from SMBC Nikko Securities Inc. Some have also raised concerns that the …