TOKYO, Jan 27 (Reuters) - Japan's government bond (JGB) yields rose to their highest levels in more than a week on Friday, as investors braced for an auction for 10-year bonds and as Tokyo's consumer inflation hit a four-decade high.
The 10-year JGB yield rose to 0.475%, its highest since the Bank of Japan (BOJ) kept a trading band for the benchmark yield unchanged at the policy meeting on Jan. 18.
The five-year yield rose to as high as 0.2%, its highest since Jan. 20, and last traded at 0.190%, up 1 basis point from the previous session.
The BOJ said it would provide five-year loans against collateral to financial institutions, a move to encourage investors to buy 5-year notes to contain elevated yields.
"The 10-year yield will rise to 0.5% in the run up to the auction. Investors want to buy bonds with a higher yield," said Kazuhiko Sano, a strategist at Tokai Tokyo Securities.
The Ministry of Finance is planning to issue about 2.7 trillion yen ($20.8 billion) of 10-year bonds on Thursday, providing much needed liquidity to the market.
The benchmark 369th 10-year bonds, which were first issued last month, carried a coupon rate of 0.5%.
The two-year JGB yield rose 1 basis point to -0.005%, its highest since Jan. 19.
Core consumer prices in Japan's capital, a leading indicator of nationwide trends, rose 4.3% in January from a year earlier, marking the fastest annual gain in nearly 42 years and keeping the central bank under pressure to phase out economic stimulus.
Benchmark 10-year JGB futures fell 59 yen to 146.81, hitting its lowest since Jan. 20, with a trading volume of 15,253 lots.
The 20-year JGB yield jumped 7 basis points to 1.370%, its highest since Jan. 19.
The 30-year JGB yield rose points 5.5 basis points to 1.565%.
The 40-year JGB yield rose 3.5 basis points to 1.810%.
($1 = 129.9200 yen) (Reporting by Junko Fujita; editing by Uttaresh.V)
