Initiatives Related to Quality

Quality Policy

In order to accord activities related to "continuously increasing corporate value," which is the most important task for businesses, with "initiatives related to quality" and "initiatives related to the environment," our company has set forth quality policies and environmental policies in our "Management Philosophy" and "Corporate Code of Conduct Basic Policy."


In 1995, we were among the first companies in Japan to be ISO 9001 certified, and obtaining this certification was a means of guaranteeing our quality policy.

ISO9001 certification mark

Quality Assurance System Based on ISO 9001

In order to reliably make use of the ISO 9001 certification that we obtained in our quality assurance system, our entire company has been working together to carry the following processes.

【Market information】〈Market survey, and anticipation of needs and specification problems.〉 〈Plan quality(DR0)〉top-level manager, Marketing department, Sales department, Technology department, Quality assurance department, Production department 【Specification plan】 【Research and development design】〈Validity of design, Evaluation and design verification〉 〈Design quality(DR1)〉Sales department, Technology department, Quality assurance department, Production department 【Trial production, verification, and evaluation】〈4M Machine(devices), Man(people), Material(ingredients), Method(techniques)〉 〈Production preparation quality(DR2)〉Technology department, Quality assurance department, Production department 【Production preparation】 【Production prototype first lot evaluation】〈Preventing reoccurrence, Traceability, Process management〉 〈Manufacturing quality(DR3)〉Quality assurance department, Production department 【Mass production evaluation】 【Production transfer】 【Production】 【Usage stage】〈Maintenance and field service〉 〈Service quality(DR4)〉Service department, Sales department, Quality assurance department

DR (Design Review)

The Design Review is an evaluation aimed ensuring quality in each process related to products and services for customers: "planning," "design," "production preparation," "manufacturing," and "service."

Evaluation and Test Items

In order to guarantee "design quality," "production preparation quality," and "manufacturing quality," and enable use with a sense of reassurance, the following functional verifications and environment and planning verifications are carried out as necessary at the time of development and at the time of manufacturing.

【Function verification】Individual item function, System function, OS & driver, Consumption current, Assembly interference, Aging 【Environment and standard verification】Temperature and humidity testing, Voltage drop testing, Power supply voltage testing, Vibration resistance testing, Anti-noise testing, Impact testing, Static electricity testing, Dielectric withstand testing, Momentary power outage testing, Insulation resistance testing, Standard testing IP65/CE mark/UL specific model/option

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