Ikkyo = (first) Ude osae. Arm pinning technique.

Nikyo = (second) Kote-Mawashi. Wrist in-turn.

Sankyo = (third) Kotei-hineri. Wrist twist.

Yonkyo = (fourth) Tekubi-osae. Wrist pin.

Gokyo = (fifth) Ude-nobashi. Arm stretching technique.

Rokyo = (sixth) Hiji-gime. Reverse arm lock.


For visual examples, go to http://www.indiana.edu/~aikido/glossary.html#anchor9530

(Scroll down to find the pinning techniques)