Japanese Finance Minister Shunichi Suzuki warned Friday that Japan will take “appropriate” steps against excessive volatility in the currency market, after the yen continued to slide against the U.S. dollar beyond 161, hitting a 37-year low. Suzuki said at a press conference he was “deeply concerned” about the negative impact that rapid and one-sided currency movements would have on the Japanese economy. The yen’s persistent depreciation comes amid market jitters over another round of intervention by Japanese authorities. Suzuki added he would not say whether he viewed the yen’s recent fall as…