World-class gas pipe material parts and materials company

Quality Control System

Quality Control System of TK-FUJIKIN is to provide customers with reliable and high-quality products.

TK-FUJIKIN has designated 6 core management factors -Process Quality Control, Document Control, Non-Conformance Control, Change Control, Root-Cause corrective Action, Supplier Control-within our Quality Management System(QMS). We have been implementing 3R5S for our production system, utilizing standards, groupware, and ERP.

Key Operational Element


Process Quality Control
TK-FUJIKIN controls quality of its process through standardized process control tools such as Process Flow Diagram, FMEA, Control Plan, with introduction of specialized quality control tool(QMS Programme).


Document Control
Document forms are approved and distributed via groupware and access permissions are given according to affiliated departments and categories. All these documents get renewed and reviewed every 2 years.


Non-Conformance Control
Nonconfirmity is basically controlled by KPI, and with Dash Board Program, staffs are able to check the progress flows, the number of requests registered and handled by persons in charge in real time.
Based on this Dash Board, PICs can also check significant notifications on quality issues to avoid occurence of nonconformities and delay in handling.


Change Control
Documents on procedures based on 5M1E(Man, Machine, Material, Method, Measurement, Environment) are prepared for recording change requirements from customers as well as internal/supplier change, and '5M1E Change Notification' is written/reviewed/approved/distributed via groupware when each change is made.


Root Cause Corrective Action
The cause analysis and recurrence prevention measures are handled according to standard procedures and forms. For severe nonconformities, 8D Report used in semiconductor industry is applied for isolation, immediate action, cause analysis, recurrence prevention, and effectiveness analysis.


Supplier Control
TK-FUJIKIN has its own systematic supplier control system and provides technical support, improvement of nonconformities, and regular training programmes. Major partners get evaluated once a half-year with guidance for improvement, and results are reported to management once a year.