Artificial intelligence70% of corporations report higher profits in previous fiscal yearProfit at Advantest more than doubled last fiscal year due to strong sales of chip testing tools. (Photo by Hazumu Urushiyama)KYOHEI SUGA, REIKO OTAKE and CHIAKI NAKATAMay 1, 2026 00:48 JSTTOKYO -- A large majority of Japanese corporations reported bigger profits last fiscal year, with companies like Hitachi and Advantest surging ahead on the booming artificial intelligence sector.