• USD/JPY ascends to mid-148s, propelled by Powell's comments and rising US Treasury yields.
• Powell hints at three rate cuts this year, bolstering the Dollar, despite ruling out a March cut.
• January's ISM Services PMI rise indicates stronger US Non-Manufacturing activity, boosting economic optimism.
• US 10-year Treasury yield climbs to 4.16%, with the Dollar Index up 0.52%, reflecting the dollar's dominance.
• Japanese earnings and spending data, alongside Fed officials' remarks, awaited for more market insights.

The USD/JPY gained modestly late in the New York session, trading at around the 148.70s area, sponsored by the strong US Dollar and higher US Treasury bond yields. Over the weekend, comments by the US Federal Reserve (Fed) Chair Jerome Powell spurred flows toward the Greenback while US Treasury yields skyrocketed.