[1] It is a variant of Seoi nage, and is one of the nineteen accepted techniques in Shinmeisho No Waza of Kodokan Judo.

[2] Ippon seoi nage literally means "one arm over the back throw", but has also been translated as a "one arm shoulder throw", as the opponent or uke is thrown over the thrower or tori's shoulder.

[3] Ippon seoi nage begins with one judo player (tori) breaking another's (uke's) balance in the forward direction.

With one hand holding uke's arm, tori steps forward and turns inward.

[5] Hidari kata seoi is a variation of ippon seoi nage, where instead of tori maintaining their sleeve grip and going under the same arm, they maintain the lapel grip and go under uke's other arm.