Family name Ohkuma (Ohkuma 
, โอคุมะ 
) , in all the world, is a very rare last name. The surname Ohkuma is characteristic of New Zealand, where it is a very rare surname, Thailand, where it is an extremely rare surname, and Brazil.
| toshiaki ohkuma researcher (ORCID 0000-0001-5463-1631) |
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| masahisa ohkuma researcher |
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| toshiaki ohkuma researcher (ORCID 0000-0001-8105-7102) |
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| tomoko ohkuma researcher (ORCID 0000-0002-5078-4814) |
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| takeshi ohkuma researcher (ORCID 0000-0002-5467-3169) |
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| kazumasa ohkuma researcher |
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| takahiro ohkuma researcher |
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| ryotaro ohkuma researcher (ORCID 0000-0003-4121-2491) |
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