Bank of Japan Policy Board member Teizo Taya was reported Wednesday saying a weaker yen was OK if the decline was natural, adding the yen's recent fall is a result of the gap in recovery between US and Japanese economies. Taya also echoed recent comments from BOJ governor Masaru Hayami, saying the BOJ cannot adopt an inflation target and recent monetary easings have had only a limited impact on the economy and prices. //MarketNews