Hata Sahachiro - Hata Sahachiro

Microbiologist. Born on March 23, 1873 in Tsumo Village, Mino County, Shimane Prefecture (now Masuda City), he was adopted by Hata Tokuta (1887). In 1891 (Meiji 24), he entered the medical department of the Third High School (now Okayama University Medical School), which was then located in Okayama, and graduated in 1895. After serving in the military, he worked at Okayama Prefectural Hospital (1897), went to Tokyo to become a student of Kitasato Shibasaburo and became an assistant at the Institute for Infectious Diseases (1898), studied in Germany (1907) under Wassermann, and then studied under Ehrlich and Martin Jacoby (1872-1941) before returning to Japan (1910). When the Kitasato Institute was established, he resigned from his official position (1914), and became a professor at Keio University (1920) and vice director of the Kitasato Institute (1931). He was a member of the Imperial Academy (1933). His main research was the discovery, in collaboration with Ehrlich, of Salvarsan (commonly known as No. 606) as a chemotherapy drug that was highly effective against relapsing fever, syphilis, and malaria (1910), and in his later years he received the Asakawa Prize (1934) for his research into deep-penetrating disinfectants. He passed away on November 22, 1938. The Hata Memorial Hall commemorating his achievements is located in Mito-cho, Masuda City.

[Atsuko Iwata]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

微生物学者。明治6年3月23日島根県美濃(みの)郡都茂(つも)村（現、益田市）に生まれ、秦徳太の養子となった（1887）。1891年（明治24）、当時岡山にあった第三高等学校医学部（現、岡山大学医学部）へ入学、1895年同校卒業。軍務に服したのち、岡山県立病院勤務（1897）、東京へ出て北里柴三郎(きたさとしばさぶろう)の門下となり伝染病研究所助手（1898）、ドイツへ留学（1907）してワッセルマンに学び、ついでエールリヒ、さらにヤコビーMartin Jacoby（1872―1941）のもとで研究し帰国（1910）、北里研究所新設の際北里に従って官を辞し（1914）、慶応義塾大学教授（1920）、北里研究所副所長（1931）。帝国学士院会員（1933）。おもな研究は、エールリヒと共同でサルバルサン（俗称606号）が化学療法剤として回帰熱、梅毒、マラリアに卓効があることを発見したことであり（1910）、晩年には深達性消毒薬の研究で浅川賞（1934）を受けた。昭和13年11月22日没。益田市美都(みと)町には、業績を顕彰する秦記念館がある。

［岩田敦子］

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