Late-Edo (Kansei-era) Japanese kohō-ha 古方派 physician of Làng-sù 浪速 (Naniwa, mod. Ōsaka); a shòu-yè mén-rén 受業門人 (apprentice-disciple) of 田中榮信 Tanaka Eishin (and through Tanaka, of the 吉益東洞 Yoshimasu Tōdō school of Kyōto). His principal documented role is as the publication-sponsor (with his fellow-disciple Hama Tenyū 濱天祐) of his master’s KR3er094 Cháng-shā zhèng-huì 長沙證匯 (Kansei 2 / 1790, printed Kansei 3 / 1791), to which he contributed the postface (hòu-xù 後序). He is to be distinguished from his fellow-Naniwa colleague Okuda Genkei 奧田元繼, who provided the second formal preface to the same work.