Cognomen Sugii (Sugii 
) , worldwide, is a very rare family name. The family name Sugii is habitual in Singapore, where it is a rare surname, New Zealand, where it is a very rare surname, and Japan. Measured by absolute frequency, it is commonest in Japan, Brazil, and the United States. Also, Sugii is the forename as well as the last name.
| takashi sugii (b. 1947) |
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| shigeki sugii researcher ORCID ID = 0000-0002-2537-9534 |
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| hideki sugii researcher |
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| yasuhiko sugii researcher |
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| shoji sugii researcher (ORCID 0000-0001-6044-7187) |
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