YOON Nak-joon (4th Dan) is the Dojocho of

Aikido Ansan dojo and serves as the President of KAU.

 

He started Aikido in 2003 and opened

the Ansan Dojo in 2009.

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YOON Nak-joon was a staff at the 2019

World Martial Arts Masterships in Chungju,

which were directed by the International Aikido Federation.

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He has been working in marketing management in the

corporate world for 15 years and is currently

running an educational agency business

for companies and corporations.

SUNG Ju-hwan (5th Dan) is the Dojocho of Aikido

Samsungdang and serves as the Vice President and

Technical Director of KAU.

He is a police officer since 1999 and participated in the

modification of Korean Police Arresting methods in 2005.
In 2006-2007, Sung Ju-hwan served as an UNPOL (UN

Police) in Timor Leste, where he was dispatched as a close

protection officer of the nation's president. He also taught

Aikido and Police arresting methods to local officers and

civilians, which was commended as an excellent example

of community policing.

SUNG Ju-hwan was a delegate to the 2013 World Combat

Games in St. Petersberg, Russia, and a staff at the 2019

World Martial Arts Masterships in Chungju, Korea. Both

events were directed by the International Aikido Federation.