WebBattles of Kawanakajima (1561) Yamamoto Kansuke (山本 勘助, 1501 – October 18, 1561) was a Japanese samurai of the Sengoku period. He was known as one of the "Twenty-Four Generals of Takeda Shingen". [1] Also known by his formal name, Haruyuki (晴幸). [2]