Lean Manufacturing and Six Sigma Definitions

Glossary terms, history, people and definitions about Lean and Six Sigma

Chihiro Nakao

Share This

Chihiro Nakao spent the first 27 years of his career working for Toyota, where he was mentored and trained by Taiichi Ohno, originator of the Toyota Production System (TPS). He was a part of the original autonomous study groups initiated by Ohno, who ultimately came up the basic philosophy and approach of TPS.

He founded the Shingijutsu Company in 1987, and has dedicated himself to spreading the principles of the Toyota Production System around the world to create the Global Production System.

He is responsible for lean concepts like 3P, Moonshine, and Oba gauge. He’s also famous for using the term “concrete heads” to describe management that is hard-headed and not open to change.



  • Bob Emiliani
  • Jon Miller




lean six sigma certification and training

Additional Resources

« Back to Glossary Index