> The Toyota Production System (TPS) [..] is based on the philosophy of the complete elimination of all waste in pursuit of the most efficient methods [it] has evolved through many years of trial and error to improve efficiency based on the Just-in-Time concept developed by Kiichiro Toyoda, the founder (and second president) of Toyota Motor Corporation.
https://global.toyota/en/company/vision-and-philosophy/produ...
> The Toyota Production System (TPS) [..] is based on the philosophy of the complete elimination of all waste in pursuit of the most efficient methods [it] has evolved through many years of trial and error to improve efficiency based on the Just-in-Time concept developed by Kiichiro Toyoda, the founder (and second president) of Toyota Motor Corporation.
I'd assume the Toyota Production System and their method of lean manufacturing.
toyota invented the lean method