Toyota formalizes supplier cooperation groupsJan 1, 1960Labels: Kyohokai, Toyota MotorToyota 75Y KyohokaiKyohokai est 1943
Tooling and facilities supplier associations createdApr 1, 1962Labels: Seihokai, EihokaiToyota 75Y associationsToyota 75Y Nihokai
Kyohokai Hall opens as coordination hubJan 1, 1963Labels: Kyohokai Hall, Toyota MotorToyota 75Y Nihokai
Kanban expands toward outside suppliersJan 1, 1963Labels: Kanban, Toyota MotorTPS overviewTPS timeline doc
Toyota builds internal supplier-support expertiseJan 1, 1966Labels: Toyota production, Toyota MotorSupplier development PDFCoffeeToyota supplier case
Supplier-side JIT adoption becomes a major pushJan 1, 1970Labels: Just-in-Time, SuppliersSupplier development PDFCoffeeTPS overview
Jishuken supplier study groups launchedJan 1, 1977Labels: Jishuken, SuppliersToyota Management SystemSupplier development PDFCoffee
New Eihokai formed to tighten non-parts supportApr 1, 1983Labels: Eihokai, SeihokaiToyota 75Y NihokaiToyota 75Y associations
NUMMI begins production, showcasing TPS abroadDec 1, 1984Labels: NUMMI, General MotorsToyota 75Y NAToyota NUMMI note
Supplier industrialization under TPS becomes a modelDec 31, 1985Labels: Supplier network, Toyota MotorTPS overviewToyota 75Y associations
Kyohokai–Eihokai joint coordination deepensJan 1, 1987Labels: Kyohokai, EihokaiToyota 75Y NihokaiFutures paper Kyohokai