Hata states that Miyazawa was a member of Shōkaku's fighter group and that he died after shooting down a US torpedo plane and then deliberately crashing his Zero into another (Hata, pp. 42), although no TBDs were actually lost.
Sebaliknya, Hata mengatakan Miyazawa adalah anggota kelompok tempur Shōkaku dan tewas setelah menembak jatuh sebuah pesawat torpedo Amerika Serikat, dan secara sengaja menabrakkan pesawatnya ke pesawat torpedo Amerika Serikat yang lain (Hata, pp. 42).