Family name Tatsuoka (Tatsuoka 
) , in all the world, is a very rare surname. The surname Tatsuoka is habitual in the United States, where it is an extremely rare surname, and Brazil.
| VARIANT | COUNTRY |
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| Tatsuoka | Brazil, United States |
| sachiko tatsuoka Japanese association football player, JP |
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| curtis tatsuoka researcher (ORCID 0000-0001-9991-4440) |
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| kay tatsuoka Ph.D. Rutgers University, New Brunswick 1996 |
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| hisato tatsuoka researcher |
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| kay tatsuoka Ph.D. University of Wisconsin-Madison 1985 |
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| tetsuro tatsuoka researcher |
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