Jujutsu Kata of Opposites - Hyori no Kata

Hyori no Kata can be translated as the "kata of opposites", and equally the "kata of counters". It was developed mid last century by Minoru Mochizuki sensei.
Mochizuki sensei was one of the finest Masters of the 20th century studying under all 3 of the recognised Japanese grandmasters, Ueshiba sensei, Kano sensei and Funakoshi sensei. He also studied under lesser known but equally respected Masters such as Nakayama sensei the founder of Kendo, Mifune sensei, known by many as Judo's finest technician (he lived in Mifunes house for some years as uchi deshi, and was also uchi deshi under Ueshiba sensei).
He had 10th dan in Aikido although he studied the art of Daito Ryu aiki jujutsu even before aikido was created, and recevied Menkyo Kaiden scrolls titled "The Self-defense of Daito-ryu Aiki Jujutsu" and “The Innermost Teachings of Daito-ryu Aiki Jujutsu”. He also held 9th Dan in Jujutsu, 8th Dan in Judo, 8th Dan in Katori Shinto Ryu Kobudo, 5th Dan in Shindo Muso-ryu Jojutsu, 5th Dan in Kendo and 5th Dan in Karate. Mochizuki Sensei was the 3rd Shihan of the Aikido division of Kokusai Budoin (International Martial Arts Federation). He was the first to introduce Karate and Aikido to France, the country where he eventually retired.
He established the Yoseikan, a martial arts school whose name translates to "House of Honesty and Education". He intended it to be a sogo-budo school, replicating the study of the samurai where the composite array of traditional martial arts were taught rather than steering students into a particular specialisation.
We are indebted to these original Masters without whom we would be left with a "look-alike" facade of martial arts which are showy and spectacular but which lack depth and meaning. It is hoped that by presenting information such as this, (which is by no means promoted as being the epitomy of these forms) students interested in exploring the original teachings of bujutsu can do their own research and upskill themselves so that these arts and skills are not lost to history but become part of their regular training. Kawaish sensei in his book "The 7 Katas of Judo" insisted that the well rounded martial arts must train in every facet of his/her discipline in order to become a complete martial artist. The study of kata requires the student to analyse each technique fully and thus become totally familiar with its intent and its detail.
In so doing, they will also learn about themselves and others.
In an interview with "Aikido Journal" Mochizuki sensei outlined the need for both judo and aikido (and all martial arts) to remain as martial arts and not to transform into competitive sports. He also confirmed in some detail that the founders of these arts also wished for them not to become sports. To do so would disadvantage (and exclude) the weak and would dilute the huge benefits of personal and character development that martial arts provide. You are encouraged to read his interview in full in Aikido Journal dated November 22nd 1982.