Surname Yoshiyasu (Yoshiyasu 
) , in the world, is a rare last name. The last name Yoshiyasu is habitual in Japan, where it is a rare surname, Brazil, where it is a very rare surname, and China, where it is an extremely rare surname. Much more prevalently, Yoshiyasu is the forename as well as the last name.
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| Yoshiyasu | Japan, China, United States, Canada, Brazil |
| satomi yoshiyasu daimyo of the Azuchi-Momoyama period through the Edo period (b. 1573) |
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| yuki yoshiyasu researcher (ORCID 0000-0002-4127-1048) |
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| nobuyuki yoshiyasu researcher (ORCID 0000-0003-0982-2222) |
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| yutaka yoshiyasu JP |
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Abe, Tanaka, Tamura, Ishida, Yamada, Uchida, Shimizu, Hayashi, Ichikawa, Yoshida, Takeuchi, Nakamura, Hasegawa, Furukawa, Ishikawa, Watanabe, Yamamoto, Yamazaki, Kobayashi, Kinoshita, Takahashi, Nakanishi, Suzuki, Sawada, Sasaki, Masuda, Ito, Ono, Ota, Mori, Sano, Sato, Ando, Kato, Kubo, Wada, Yamaguchi, Ueda, Miura, Saito, Shoji, Honda, Fujii, Inoue, Ishii, Okada, Okido, Ogawa, Maeda, and Yanagisawa