The yield on the 10-year U.S. Treasury note was around 4.65%-4.7% on Friday after reaching 4.75% earlier in the week, a 19-month high, as an initial pullback driven by softer July producer prices, slowing consumer inflation and unexpectedly weak retail sales gave way to renewed selling in longer-dated government debt. Investors remained concerned about persistent inflation risks, including higher energy prices and year-ahead inflation expectations in the University of Michigan survey rising in August for a fifth straight month above 4%. Long-end Treasuries also faced pressure from concern that Japan, the largest foreign holder of U.S. Treasuries, could sell reserves if its Ministry of Finance intervenes to support the yen. Those forces helped push the 30-year bond yield sharply higher, with one account citing a 19-year high, while a weak 30-year auction pointed to soft demand for long-dated debt.