Mystery Writers of Japan Award; Honkaku Mystery Award; Naoki Prize
1973 – Shosetsu Gendai New Writers Prize: Arukadia no Natsu (アルカディアの夏) (short story)
1985 – Mystery Writers of Japan Award for Best Novel: Kabe Tabishibai Satsujin Jiken (壁 旅芝居殺人事件) (mystery novel)
1986 – Naoki Prize: Koi Kurenai (恋紅) (historical novel)
1990 – Shibata Renzaburo Prize: Baraki (薔薇忌) (fantasy short story collection)
1998 – Yoshikawa Eiji Prize for Literature: Shi no Izumi (死の泉) (mystery novel)
2012 – Honkaku Mystery Award: The Case of the Curious Cadaver in the Dissectorium of Dr. Daniel Burton (mystery novel)
2013 – Japan Mystery Literature Award for Lifetime Achievement The Mystery Writers of Japan are presented every year by the Mystery Writers of Japan.
Mystery Writers of Japan Award; Honkaku Mystery Award; Naoki Prize
1973 – Shosetsu Gendai New Writers Prize: Arukadia no Natsu (アルカディアの夏) (short story)
1985 – Mystery Writers of Japan Award for Best Novel: Kabe Tabishibai Satsujin Jiken (壁 旅芝居殺人事件) (mystery novel)
1986 – Naoki Prize: Koi Kurenai (恋紅) (historical novel)
1990 – Shibata Renzaburo Prize: Baraki (薔薇忌) (fantasy short story collection)
1998 – Yoshikawa Eiji Prize for Literature: Shi no Izumi (死の泉) (mystery novel)
2012 – Honkaku Mystery Award: The Case of the Curious Cadaver in the Dissectorium of Dr. Daniel Burton (mystery novel)
2013 – Japan Mystery Literature Award for Lifetime Achievement The Mystery Writers of Japan are presented every year by the Mystery Writers of Japan.