Kaizen is a Japanese philosophy of continuous improvement of processes in manufacturing, engineering, and business management. It originated with Toyota in the 1950s and was popularized in the Western world by Masaaki Imai in the 1980s and 1990s. Kaizen focuses on continual small improvements through standardized work and identifying and addressing problems to minimize waste and costs, increase safety and efficiency, and improve customer satisfaction. When implemented successfully, kaizen results in major benefits to businesses through faster delivery, lower costs, and greater customer satisfaction.