Hitachi Systems, Ltd; SMS Co., Ltd.; Komatsu; Sompo Health Support Inc.; TIS Inc.; AORC; JMA Research Institute Inc.; BackTech Inc.; EWEL Inc.; University of Occupational and Environmental Health, UOEH; HASEKO Corporation; Ministry of Health, Labour and Welfare, MHLW, (20JA1005, 210401-01); Ministry of Health, Labour and Welfare, MHLW; Japan Society for the Promotion of Science, JSPS, (JP22K10543, JP19K19471); Japan Society for the Promotion of Science, JSPS