Cognomen Ihira (Ihira 
) , around the globe, is a very rare family name. The cognomen Ihira is characteristic of the United States, where it is an extremely rare surname, India, and China. More prevalently, Ihira is the forename as well as the last name.
| kei ihira researcher |
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| hikaru ihira researcher (ORCID 0000-0002-3910-5120) |
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| masaru ihira researcher |
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