Japan?s stocks gained for the first time in four days as Tokyo Electric Power Co. advanced after the government said it didn?t support a breakup of the utility and as carmakers climbed. Tokyo Electric, operator of the nuclear plant crippled by the March 11 earthquake and tsunami, rebounded from yesterday?s record 28 percent plunge, leading utilities higher. Toyota Motor Corp., the world?s No. 1 carmaker, advanced after a report it will increase production of hybrid cars. Canon, which gets more than 80 percent of revenue from outside Japan, sank 3.3 percent after the end of a buyback program.