In mid-1943, Kashiide transitioned to fly the Kawasaki Ki-45 "Toryu" (Dragon Slayer), a powerful twin-engine fighter heavily armed with one 37 mm and two 20 mm autocannon. Defending against the first attacks by Boeing B-29 Superfortresses bombing the Japan Home Islands, on 15–16 June 1944 during the Bombing of Yawata, Kashiide claimed two B-29s and possibly a third. On 20 August 1944, he claimed three B-29s downed and three more damaged, among the 14 B-29s lost on the mission. He developed a preference for frontal assault on the B-29, aiming at the nose of the aircraft, much as many earlier "Luftwaffe" pilots had done in attacking Eighth Air Force B-17 Flying Fortresses in the European Theater; he trained other flyers to use his style of attack.