Abstract
I gave a lecture about “ Quality Assurance in Edo era ” at the QC Salon on June 21, 2021. During Edo era, many technologies and systems that had a great influence on the world, such as ukiyo-e, a full-color printing technology, and rice futures trading, were invented. These technologies and systems had world-class quality. I focused on matchlock guns, called Hinawa-ju, the certification system for excellent inns, kimono as a super-eco goods, and ukiyo-e to find out why they were kept high quality.
