Kaō shi 100-nen, 1993 colophon (Kaō Kabushiki Kaisha; loc. Tōkyō-to Chūō-ku) p. 836 (10/1985: Kaō Sekken Kabushiki Kaisha (6/1982: Eng. name Kao Soap Company, Ltd. changed to Kao Corporation) changed name to Kaō Kabushiki Kaisha (Eng. name: Kao Corporation))