English: Takamatsu, Toyokichi (1852-1937), a Japanese chemist. (Public obituary announced on Kampō, doi:10.11501/2959718, p.269, 9 October 1937 as a public servant or a professor at Tokyo Imperial University, author of "On Japanese Pigment" (1878), published by the Department of Science at Tokio University, available as digitized material. OCLC1089522649.) Photograph taken before 1955.