Emperor Meiji (Sovereign from 27 December 1876) Emperor Taishō (Grand Cordon 3 November 1889; Collar 10 May 1900; Sovereign from 30 July 1912) Emperor Shōwa (Grand Cordon 9 September 1912; Collar as Regent 24 September 1921; Sovereign from 25 December 1926) Emperor Akihito (Grand Cordon 10 November 1952; Sovereign from 7 January 1989 to 30 April 2019) Emperor Naruhito (Grand Cordon 23 February 1980; Sovereign since 1 May 2019)