Piotr Masztalerz studies Aikido since 1988. He’s a 6 Dan Aikido Birankai Shidoin based in Poland. For those who don’t know Birankai is an association of Aikido Practitioners and Dojos founded by T. K. Chiba Shihan, forged by rigorous training, tempered by mutual respect, and committed to the relentless pursuit of the art.
Tsuruzo Miyamoto was born on March 30, 1953, on the island of Kyushu, Japan. He is an 8 Dan and one of the most respected Hombu Shihans at the moment.
Jiro Kimura is an 8 Dan Aikido Aikikai Shihan. He is in charge of the Osaka Buikukai that is considered to be one of the biggest organizations affiliated to the Aikikai.
Christian Tissier was born on February 7, 1951, in Paris, France. He began aikido at the age of 11 under the Jean-Claude Tavernier in his native city and soon on moved to train under the Mutsuro Nakazono, 7 Dan Aikido Aikikai. In 1968 Christian received a 2nd Dan from Nakazono Sensei and made a plan to go to Japan after.