Basic approach

By setting quality assurance rules as a foundation in the works involving product planning and product inspection, we defined the objective and the responsibility of each job, making each department assume responsibility for quality assurance. Based on quality assurance rules and following the S-D-C-A daily improvement cycle to gain the trust of customers, we are striving to improve our quality assurance systems with an emphasis on processes. We will also make a company-wide effort to enhance the quality assurance system by developing human resources capable of performing operations with a sense of ownership through work quality improvement activities based on the concept of total quality management（TQM）.

The quality assurance promotion system

Based on the concept that "quality is a function," each department is responsible for quality-related work and we are striving globally to hand work over to the next department with certainty（to coordinate between departments）in order to guarantee the quality of products delivered to customers. To that end, we are focusing activities on "Ji Kotei-Kanketsu（own process completion）*" and "two-way communication."

*Ji Kotei-Kanketsu: A way of working by which employees "execute their own processes completely and do not pass on non-conforming products to the next process"

Quality improvement activities

We are conducting our daily activities to respond to the expectations of our customers, such as business quality improvement with TQM, quality control activity confirmation meetings, and regular quality meetings. In addition, we are working to improve the quality of all of the Company's products by sharing issues and failure information as well as examples of improvements through meetings with suppliers.
If quality issues arise, we implement a cycle that ensures that we pursue the cause, execute countermeasures, thoroughly prevent recurrence at relevant departments within the Company, and put the system under review.

Performing QA inspection

The Chief of Quality Assurance Center and the members perform an overall inspection of the quality assurance structures of all plants in Japan and overseas and provide guidance. Improvements are made through these inspections, and development of structures and improvement in quality level are sought to prevent serious quality problems from arising. Similarly, key processes performed within the Company or at our suppliers are audited by the auditors to check whether the quality of the work are assured at the view point "Ji Kotei-Kanketsu（own process completion）," and improvements are made.

Human resources development activities

Our training program inculcates knowledge of quality required for commercialization as well as understanding of the roles of manufacturing processes and quality assurance systems required for process assurance, and skills for recurrence prevention. Furthermore, the quality assurance rules enhance understanding of personal roles, responsibilities and the significance of work, thereby increasing satisfaction.
And since FY2022, we have been conducting global quality exhibitions to promote the understanding of quality among employees under the theme, "Know, Think, and Act."