Our approach to quality management
Our Group’s basic philosophy regarding quality is to “Prioritize quality in
our products and earn the trust of customers.” This philosophy is embodied by
and integrated on an organizational level through the Group Code of Conduct
and the Code of Ethical Conduct, among others.
Common quality control policies
In order to put our basic philosophy into practice, each internal company
has formulated its own quality policy and is working actively to acquire
and update certifications, including ISO 9001 or JIS Q 9100, and making
continuous improvements of quality management systems.
| ISO9001 |
Marine Systems Company
Measurement Systems Company
Fluid Power & Control Systems Company
Inspection Systems Company
Communication & Control Systems Company |
| JIS Q 9100 |
Electronics Systems Company |
Quality management promotion system
Two tiers of quality assurance activities
We have established a Quality Management Supervisory Office to deal with
company-wide issues relating to quality under our Headquarters’
administrative divisions.
The Quality Management Supervisory Office
engages in the cross-organizational management and supervision of quality
to ensure that our Group’s products remain above a certain level of
quality. The office also engages in activities to prevent risks to quality
before they manifest. More specifically, in addition to maintaining and
managing the Technical Production Regulations, which are company- wide
rules regarding the quality of our products, the Quality Management
Supervisory Office complements the independent quality management efforts
of individual quality assurance departments by conducting inspection
quality audits of each internal company and subsidiary.
Within each
internal company, the Quality Assurance Department is established
independently from the Sales, Engineering, and Production departments,
providing direction and guidance in the contracting, design and
development, purchasing, production, inspection, and service stages of the
work process. In addition, we have established a framework of internal
company rules, allowing each internal company, with their varying
characteristics, to draw up its own operational rules as long as they do
not violate the Technical Production Rules.
Quality Subcommittee
The Quality Subcommittee was established as a forum for sharing
information and resolving cross-organizational quality issues within the
Company. It meets under the jurisdiction of the Chief Quality Officer,
with the quality managers of each internal company and subsidiary as
members. It is held four times a year by the Quality Management
Supervisory Office to identify Company- wide problems and future
challenges relating to quality, and to formulate measures to resolve them.
In the event that concerns emerge regarding quality at an internal company
or subsidiary, a report is made to the Chief of Quality at a Quality
Subcommittee meeting. If the Chief of Quality deems it necessary,
corrections may be indicated and information about the issue may be
escalated to the necessary level, such as the Management Conference.
Specific measures for quality management
Inspection quality audits
The Quality Management Supervisory Office conducts inspection quality audits
on each internal company and subsidiary. In order to ensure audit
effectiveness and improve the quality management capabilities of our internal
companies and subsidiaries, audit methods and scope are revised annually.
Activities of the Quality Subcommittee
Aiming to further improve product quality, the Quality Subcommittee has worked
to build a defect database to share throughout the Group information on
defects as well as peripheral knowledge, which had previously been accumulated
on an individual basis by each internal company and subsidiary.
In fiscal
2022, analysis result reports for the past 10 years managed by the Testing and
Analysis Team (belonging to the Engineering & Products Service Office) were
compiled into a database. We will continue to add to the database
sequentially.
Quality training
Internal quality audits are one means we use to maintain and strengthen
quality management systems (QMS), and we conduct internal auditor education in
order to maintain and enhance the capabilities of our lead and regular
auditors. Further, each of our internal companies holds meetings regarding
quality (quality control meetings, quality committees, etc.) to report defects
and share solutions.
Hierarchy-specific education on quality assurance and QMS is provided when
employees join the company and when they are promoted to higher positions. An
example of an everyday awareness-raising activity is our holding of human
error debriefings, whose aim is the prevention of defects. In addition, we
have established a quality enhancement month during which we solicit
quality-related slogans from employees, post the best entries in the plant,
and add quality-related slogans to the signatures of e-mails sent by employees
of the Quality Assurance Department, thereby maintaining and strengthening
awareness of quality on a daily basis.
The scope of quality control has been expanded to the
entire Hydraulics and Pneumatics business segment, and
in order to improve quality control through the sharing of
information, quality meetings are held in cooperation with
our subsidiaries TOKYO KEIKI POWER SYSTEMS INC.
(TPS) and TOKYO KEIKI PRECISION TECHNOLOGY
CO., LTD. (TPT), and affiliate TOKIMEC KOREA POWER
CONTROL CO., LTD. (TKP) in Korea.
In addition, for specially controlled products, for which
inspection details are individually agreed upon with the
customer, we have established a separate QMS and
strengthened our inspection quality system by providing
professional ethics education, inspector training and
appointment/registration, and conducting unannounced
audits of the relevant divisions.
In order for our employees to learn quality control methods
and improve their awareness of quality, we encourage them
to obtain QC certifications and hold training sessions for doing
so. This covers the Marine Systems Company, the Electronic
Equipment Department of the Fluid Power & Control Systems
Company, the Production Department of the Inspection
Systems Company, and TOKYO KEIKI TECHNOPORT
INC., all of which are located within the Yaita Plant to raise
awareness.