Product Safety & Security
Quality & Environmental Policies
DMC has established quality and environmental policies that express our corporate philosophy of “achieving sustainable growth while promoting happiness throughout society.”
- We will provide high-quality products to all our markets, products that satisfy customer requirements, laws, and regulatory requirements.
- We will measure and analyze the response of the customers and regions we serve to continuously improve our products, processes and systems.
- We seek to reduce our environmental footprint through our commitment to preventing pollution,reducing waste and saving resources.
President. Tatsuya Sada




DMC's quality assurance system aims to meet customer expectations for safe, high-quality products and services. We conduct yearly management reviews to examine and evaluate the state of our quality management system in line with our quality and environment policies and quality targets to ensure constant improvement. DMC shares progress in target achievement and product quality issues at Quality and Environment Council meetings held once per month, and promotes the PDCA cycle to ensure that all employees understand quality and environment policies and achieve ISO targets established by each division. In addition, Shirakawa Factory, Shirakawa Factory, Indonesia Factory, Tokyo Office, Osaka Office, and Nagoya Service Office acquired ISO certification for the design, development and production of touchscreens. ISO certification coverage of production sites: 100%. The Iwaki Factory, which began operations in October 2021, is also working to obtain ISO 9001 certification.
Quality & Environmental Management System Diagram

We are taking various initiatives to provide higher quality products. The strength of our Group is that we have the technology, know-how, and systems that can precisely respond to the sophisticated and diverse quality requirements of our customers. As such, we have built a system that allows us to make the most of these strengths.
Monthly New Product Strategy Meeting
A product strategy meeting is held regularly (once/month) with the President and representatives from the Planning and Development Division, Sales Division, and Manufacturing Division, so that customer needs can be analyzed and reflected in our products.
Quality Improvement Activities
With the aim of improving production technology and productivity, we conduct quality improvement activities starting from the analysis of events that occur daily at the manufacturing site.

Communication Between Engineering Staff and Customers
It is important for us to accurately understand customer requests and consider detailed specifications for products. Therefore, personnel in charge of engineering visit customers with the personnel in charge of sales to have direct communication with customers.
Quality Assurance Patrols
DMC ensures the execution of improvement plans to address complaints about products and defects in the manufacturing process through QA patrols* to prevent defects from recurring. Although the number of complaints in FY2021 increased 6% from the previous year (number of units shipped subject to complaints increased 27% from the previous year), there were no serious product accidents.
*QA: Quality Assurance
DMC Sales Division conducts a customer satisfaction survey with 20 items in six categories (sales, sales promotion, delivery, quality, technical capability, and competitiveness) once a year targeting its major sales agents, and shares the results as customer voices among the relevant departments and divisions. This allows us to identify issues and improve products with the goal of maintaining customer trust. In FY2021, DMC distributed questionnaires to 12 sales agents (10 in Japan, and 2 overseas), and the response rate was 100%.
Proper Chemical Substances Management
DMC performs proper chemical substances management from design to disposal to ensure the safety of our products.
We use chemical substances for our products in accordance with the laws and regulations specified by each country and promote the reduction of hazardous chemical substances that may affect people and the environment. We assess the safety of all our products to ensure that hazardous chemical substances restricted by the RoHS Directive, including lead, mercury, cadmium, and hexavalent chromium are not contained in or attached to our products, or to ensure that the amount of those substances contained in or attached to our products is less than what is stipulated by laws and regulations. We reduce or cease use of the substances that we determine cause risk to ensure product safety.
We obtain a Material Safety Data Sheet (MSDS) that describes the danger and toxicity, and precautions of chemical substances and raw ingredients containing specific chemical substances to ensure safe handling until disposal.
The Quality Assurance Division plays a central role in the proper management of chemical substances and acquires the most up-to-date information and movements to ensure a prompt response to revisions in a wide range of laws and regulations regarding chemical substances.
Product Safety Design
In each process of development, design, and manufacturing, we take measures to ensure the safety of our products during their use.
In recent years, new scribing machines have been introduced to prevent damage and injury from the edges of glass sheets.
In order to continue to create products with quality and safety that satisfy our customers, training and workshops take place in each department throughout the year. In an effort to limit the spread of the coronavirus, only the following internal training sessions took place in FY2021.
Main Quality Training
Department | Training Topics | Training Topics |
---|---|---|
Quality Assurance Division | External training in environmental studies, analysis, and evaluation testing | Quality Assurance Division staff |
In-house training on topics such as evaluation testing equipment and analysis equipment | ||
In-house training on topics such as the environment and green procurement | ||
Manufacturing Division | In-house training on topics such as new and special processes | Manufacturing Division staff |