BANK OF JAPAN MINUTES SHOW SEVERAL MEMBERS SAID IT WAS DIFFICULT TO ANTICIPATE THE PACE AND TIMING OF FUTURE RATE INCREASES, WITH ONE SAYING THE BANK MUST SPEED UP RATE HIKES AS INFLATION RISKS COULD CAUSE SIGNIFICANT HARM, ANOTHER NOTING MARKETS APPEAR TO EXPECT A HIKE ABOUT ONCE EVERY SIX MONTHS THOUGH HIKES COULD COME MORE QUICKLY, AND SOME WARNING TERM PREMIA COULD INCREASE IF MARKETS DOUBT THE BOJ WILL RAISE RATES ADEQUATELY.