Soemu Toyoda
Upon learning of Nishizawa's death, the commander of the Combined Fleet, Admiral Soemu Toyoda, honored Nishizawa with a mention in an all-units bulletin and posthumously promoted him to the rank of lieutenant junior-grade. Nishizawa was also given the posthumous name "Bukai-in Kohan Giko Kyoshi", a Zen Buddhist phrase that translates: "In the ocean of the military, reflective of all distinguished pilots, an honored Buddhist person." Because of the confusion towards the end of the Pacific war, the bulletin's publication was delayed and funeral services were not held until December 2, 1947.