Responsibility to customers

Quality Improvement Activities

photo: "Learning from Failure" (Database of past incidents and lessons)

"Learning from Failure" (Database of past incidents and lessons)
This program is set up so that users can systematically browse and utilize lessons, precautions, improvement case studies, and countermeasures from a managerial perspective and the perspective of their technological field.

The Mitsubishi Electric Group incorporates the promotion of quality into products from the design and development stage, promotes activities to improve quality in all processes—including manufacturing, shipping and after-sales service—and works to improve product quality, safety and reliability.

In particular, initiatives were launched in fiscal 2012 to develop human resources who are capable of assessing and verifying customer requests and basic product functions at the development and design stages, understanding designs that ensure and guarantee functionality, stability, safety and reliability, and executing and driving the process of incorporating and designing quality. These initiatives are being pursued in all relevant departments in Japan with an eye to achieving their intended achievements in human resource development by fiscal 2021.

With regard to affiliates in Japan and overseas that engage in production, installation and maintenance, initiatives were also launched in fiscal 2012 for onsite verification of operational processes (design, procurement, production), responses to failures and legal compliance, and management of laws, regulations and standards.

We have also built a database for sharing quality-related information that is used by the entire company. It consists of information provided by prior employees on past problems, lessons learned, explanations, and examples of improvements that have been made, and it has proven effective in helping to build quality into products, implement quality improvement measures, prevent the occurrence or recurrence of problems, and train young engineers. Based on cases where there were problems, we also developed an e-learning tool called "Learning from Problems" and installed a "quality room" in each office for the display of actual quality defects found in products in the past, to supplement employee education.

Furthermore, we are achieving effective quality improvements by visualizing quality in all production processes from the design to production and after-sales service stages, ensuring prompt response to malfunctions and preventing them from occurring, and providing feedback of these initiatives to the development and design departments.

"Quality room"

  • photo: Entrance


  • photo: Inside the room

    Inside the room