Cognomen Kitaoka (Kitaoka 
) , across the world, is a rare surname. The last name Kitaoka is habitual in Japan, where it is a rare surname, Brazil, where it is a very rare surname, and the United States. Much less frequently, Kitaoka is the forename as well as the last name.
| yoshiyuki kitaoka (b. 1946) |
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| maiko kitaoka researcher |
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| yasushi kitaoka researcher |
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| hiroki kitaoka researcher (ORCID 0000-0003-0958-5028) |
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| motomitsu kitaoka researcher |
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| satoshi kitaoka researcher |
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| hisaya kitaoka Ph.D. University of Kansas 2008 |
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| masafumi kitaoka researcher |
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| taichi kitaoka researcher |
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| hideo kitaoka Japanese amateur wrestler, JP |
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| ryota kitaoka researcher |
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| takuya kitaoka researcher |
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| yukie kitaoka researcher |
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| yasuo kitaoka |
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