YOSHIO HICHIYA 10 дан - President O.G.K.K.
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NANKO MINEI 10 дан - Vice-President O.G.K.K.
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KOEL TERUYA 9 дан - Vice-President O.G.K.K.
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RYOICHI ONAGA 8 дан - European Technical manager O.G.K.K.
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MASATAKA MURAMATSU 8 дан - O.G.K.K.
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SEIKEN TOGUCHI 6 дан - O.G.K.K.