The logo of International Kikou Federation - Kokusai Kikou Renmei shows the mitsu tomoe symbol combined with the kanji for kikou. The mitsu tomoe is created from three joined tomoe and is a popular symbol in Japan. it ist seen as representative of the threefold division (Man - Earth - Sky) at the heart of the Shinto religion and is in general corresponding with the chinese symbol for Yin and Yan - Taji.

Originally it was associated with the Shinto war deity Hachiman, and through that was adopted by the samurai as their traditional symbol. The mitsu tomoe has been used in Japanese family crests and corporate logos and is a traditional symbol of Okinawa. Jeju-do's flag has a mitsudomoe on it, as did the Ryukyu Kingdom's flags.

Source: wikipedia.org