TOKYO, Jan 6 (Reuters) - Japan"s benchmark 10-year government bond yields hit a nine-month high on Thursday, tracking elevated U.S. yields, after minutes from the U.S. Federal Reserve meeting signalled it may raise interest rates sooner than expected. The 10-year JGB yield rose 1.5 basis points to 0.110%. U.S. Treasury yields also edged higher during the Asian trading hours, with the benchmark 10-year yields rising to the highest level since April 2021. A relatively weak outcome for the Bank of Japan"s bond-buying operations also dented investor sentiment. Yields on longer-ended notes also rose, with the 20-year JGB yield rising one basis point to 0.495%, and the 30-year JGB yield climbing one basis point to 0.705%. The 40-year JGB yield rose one basis point to 0.760%. The two-year JGBs were not traded and the yield remained at minus 0.090%. The five-year yield rose one basis point to minus 0.060%. Benchmark 10-year JGB futures fell 0.22 point to 151.2, with a trading volume of 22,930 lots.