LOS ANGELES Japanese stocks added to recent gains Friday morning, as a strong U.S. lead and a weaker Japanese yen helped push the market higher. The Nikkei Stock Average added 0.3% to 9,118.19, with the Topix also adding 0.3%. Exporters barreled higher as the yen fell overnight, with the dollar back above the �79 level, though the Japanese currency reclaimed a bit of that loss early Friday. Among export-focused techs, Sony Corp. climbed 1.7% and Renesas Electronics Corp. added 1.2%, while auto makers’ advances included a 1.1% gain for Honda Motor Co. and a 1% rise for Nissan Motor Co. . Shares of Toshiba Corp. added 2.2% after a Nikkei report that it had developed an engine magnet that didn’t need a key China-sourced rare earth. However, Sharp Corp. fell 0.6% after a separate Nikkei report that it may sell off its copier and air-conditioner operations. U.S. shares rallied overnight, helped in part by German Chancellor Angela Merkel’s comment Thursday that her nation will do whatever it can to keep the euro. Japanese brokers were higher after Merkel’s remarks, with Daiwa Securities Group Inc. adding 1.6% and Nomura Holdings Inc. gaining 2.1%. Steel makers also gained ground, as JFE Holdings Inc. rose 2.7% and Sumitomo Metal Industries Ltd. improved by 2.4%.