Last name Tokinaga (Tokinaga 
) , worldwide, is quite a rare family name. The cognomen Tokinaga is habitual in Eastern Asia, particularly Japan, where it is quite a rare surname. Much less frequently, Tokinaga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tokinaga | Japan, Brazil |
| aya tokinaga researcher |
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| hiroki tokinaga researcher, ORCID id # 0000-0002-2734-1820 |
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