Taiichi Ohno

Ohno Taiichi (大野耐一) 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. He devised the seven wastes (or muda in Japanese) as part of this system.

He wrote several books about the system, including Toyota Production System: Beyond Large-Scale Production.

Born in 1912 in Dalian, China, and a graduate of the Nagoya Technical High School (Japan), he joined the Toyoda family's Toyoda Spinning upon graduation in 1932 during the Great Depression thanks to the relations of his father to Kiichiro Toyoda, the son of Toyota's founding father Sakichi Toyoda.

He moved to the Toyota motor company in 1943 where he worked as a shop-floor supervisor in the engine manufacturing shop of the plant, and gradually rose through the ranks to become an executive.

Ohno's principles influenced areas outside of manufacturing, and have been extended into the service arena.

For example, the field of sales process engineering has shown how the concept of Just In Time (JIT) can improve sales, marketing, and customer service processes.

Ohno was also instrumental in developing the way organizations identify waste, with his "Seven Wastes" model which have become core in many academic approaches.

These wastes are:

1. Delay, waiting or time spent in a queue with no value being added

2. Producing more than you need

3. Over processing or undertaking non-value added activity

4. Transportation

5. Unnecessary movement or motion

6. Inventory

7. Defects in the Product.

Ohno is also known for his "Ten Precepts" to think and act to win.