*Yen Climbs To 1-week High Of 142.78 Against U.S. Dollar

*Yen Jumps To 4-day High Of 168.68 Against Swiss Franc

*Yen Rises To 1-week High Of 159.02 Against Euro

*Yen Advances To 4-day High Of 191.01 Against Pound

*Ireland Aug Wholesale Prices Fall 4.3% M/M Vs. +0.2% In July