Iwan Pranatio Shihan  trained with Gogen Hanshi, Goshi Shihan as well as Wakako Yamaguchi Shihan, on an extensive basis at the Honbu Dojo in Suginami Ku. In terms of rank seniority ( + number of years in training with Yamaguchi Goju Kai)  Iwan Shihan is next in line to Paul Starling Shihan, (however Steve Colangelo Shihan commenced training in Australia earlier in the mid 1960's)
 He is pictured here with Goshi Yamaguchi Shihan on one of his many tours of Australia to teach Australian members of Goju Kai.This technique is an application from Kata Sepai. Throughout the years, he has also competed at various tournaments and attended seminars throughout Japan, Okinawa, Indonesia and India. After teaching Karate-Do in Australia for a number of years, Iwan Shihan was awarded his 7th Dan and promoted to the position of Chief Instructor of Victoria for I.K.G.A.

Iwan Shihan is married to Misako and they are living in Victoria whereby Iwan Shihan is currently teaching at the Kew Dojo, Melbourne, Australia and attends various Pacific tournaments and seminars as an Official.  Whilst residing in Japan Iwan Pranatio Shihan also studied in the Art of Kobudo (weaponry) for a brief period of time. After many years studying at the Japan Karate-Do College as a student /instructor of the Goju Kai Karate-Do Organisation and running a Dojo in Japan, he Graduated from the College August 5th, 1978 as a Sandan . Iwan Shihan was graded to the Rank of 6th Dan (Rokudan ) Renshi Shihan in 1990, and in October 2003 to 7th Dan Renshi at the Sydney Goju Kai Seminar, by the President of IKGA Goshi Yamaguchi Shihan, and endorsed by IKGA Vice President Paul Starling Kyoshi.