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Ohno Taiichi (大野耐一, Ōno Taiichi, February 29, 1912 – May 28, 1990) was a Japanese industrial engineer and businessman. He is considered to be the father of the Toyota Production System, which inspired Lean Manufacturing in the U.S. [1] [2] He devised the seven wastes (or muda in Japanese) as part of this system.
Taiichi Ohno and Sakichi Toyoda, originators of the TPS and practices in the manufacturing of textiles, machinery and automobiles considered just-in-time manufacturing and Autonomation as the pillars upon which TPS is built. [4]
The TPS is a management system [1] that organizes manufacturing and logistics for the automobile manufacturer, including interaction with suppliers and customers. The system is a major precursor of the more generic "lean manufacturing". Taiichi Ohno and Eiji Toyoda, Japanese industrial engineers, developed the system between 1948 and 1975. [2]
Thanks to the great contribution by Mr. Taiichi Ohno – a young mechanical engineer who soon became the vice-president of Toyota – the Toyota Production System (TPS) is the approach to production engineering and organisation set in the 1950s by the said carmaker with the objective of increasing dramatically the efficiency of the company.
Taiichi Ohno, "father" of the Toyota Production System, originally identified seven forms of muda or waste: [6] Seven types of waste identified in lean manufacturing. A mnemonic may be useful for remembering the categories of waste, such as TIM WOOD or TIM WOODS (with the S referring to Skills). [7]
Production leveling, also known as production smoothing or – by its Japanese original term – heijunka (平準化), [1] is a technique for reducing the mura (unevenness) which in turn reduces muda (waste). It was vital to the development of production efficiency in the Toyota Production System and lean manufacturing. The goal is to produce ...
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Run N (not illustrated) would have changeovers that take 1.5 minutes (97% reduction) and whole shift time reduced from 420 minutes to 368 minutes a productivity improvement of 12%. The SMED concept is credited to Shigeo Shingo, one of the main contributors to the consolidation of the Toyota Production System, along with Taiichi Ohno.