From AKBAN-wiki, the Martial Arts Database

I·ai·dō (居合道), literaly "the art of immediate mental presence", is a martial art originating in Japan that uses sword drawing techniques based on Batto Jutsu and Iai Jutsu to practice immediate mental awareness.

Some ancient practitioners are credited with making the mental jump from drawing the sword for combat and defense to practicing drawing for the mental and physical benefits it provides. Among them is Lisaza Ienao, the founder of Tenshin Shoden katori Shinto Ryu.

Iaidō practice forms some of the requirements of modern kendo (剣道) and Koryu based kenjutsu (剣術):

Iaidō forms, or kata, are practiced against an imaginary opponent and involve drawing the sword, cutting in one or several directions, removing the blood and sheathing the sword.

Seitei Iaidō

Seitei iaidō is the name All Japan Kendo Federation (AJKF, Zen Nippon Kendo Renmei) gave a set of katas amalgamated in the 20th century. Seven such katas were based on, Muso Jikiden Eishin-ryu, Muso Shinden-ryu and Hoki Ryu. Three more were added In 1981, and in 2000 another one was added; The total number of Seitei kate isnow 12..

Video of Seitei Gata - AJKF official forms

Dojo that are affiliated with the All Japan Kendo Federation generally begin practice with these twelve "official forms" (seitei-gata). AJKF dojos typically start students on these before going on to teach any classical forms of iaidō that may be included in their curriculum.

The links below point to video of the Iaido kata.

1. Seitei gata - Mae 前
2. Seitei gata - Ushiro 後ろ
3. Seitei gata - Ukenagashi 受け流し
4. Seitei gata - Tsuka-ate 柄当て
5. Seitei gata - Kesagiri 袈裟切り
6. Seitei gata - Morote-tsuki 諸手突き
7. Seitei gata - Sanpō-giri 三方切り
8. Seitei gata - Ganmen-ate 顔面当て
9. Seitei gata - Soete-zuki 添え手突き
10. Seitei gata - Shihō-giri 四方切り
11. Seitei gata - Sō-giri 総切り
12. Seitei gata - Nukiuchi 抜き打ち