[ COMPANY INFORMATION ]

MITSU SEIKI
〉COMPANY INFORMATION

COMPANY PROFILE

Company nameMITSU SEIKI CO.,LTD.
Capital49.5 million yen
EstablishedApril 1933
EstablishmentApril 1962
Chairman of the BoardHisanao Mitsu
President and
Representative Director
Chikuma Mitsu
Number of Employees242
Quality PolicyWe will maintain the effectiveness of our quality management system and provide reliable products to all stakeholders.

1. We will comply and to accomplish each and every task properly
2. We will always be aware of conditions and changes, and systematically prevent risks.
3. We will eliminate human error by improving our work and environment and raising our own awareness.
CertificationsWe have been audited for JIS Q 9100:2016 "Quality management systems - Requirements for organizations in the aerospace and defense sector", which includes all the requirements of ISO 9001:2015, and have obtained a certificate of registration through confirmation of conformity.

Standard (date of initial certification)
JIS Q 9100:2016 (November 17, 2005)
Registered Examination Body
Japan Inspection QA Corporation
Scope of Registration
Manufacture of precision parts for aircraft engines, equipment and airframes
Manufacture and assembly of precision parts for general industrial machinery and equipment
(Non-applicable clause: 8.3 Design and development of products and services)
MITSU SEIKI CO.,LTD. JIS Q 9100

We have been audited to ISO 13485:2016 "Medical Devices - Quality Management Systems - Requirements for Regulatory Purposes" and have obtained a certificate of registration through confirmation of conformity.

Standard (date of initial certification)
ISO13485:2016 (October 10, 2012)
Registered Examination Body
Bureau Veritas Japan K.K.
Registered Office
Headquarters and Taga Plant
Scope of registration
Precision machining of artificial joints, implant components for artificial joints and surgical instruments (Not applicable clause: 7.3 Design and development)
MITSU SEIKI CO.,LTD. ISO13485

We has been certified by the Governor of Hyogo Prefecture as a medical device manufacturer registered under Article 23-2-3, Paragraph 1 of the Act on Quality, Efficacy and Safety Assurance of Drugs and Medical Devices, etc., and has obtained a certificate of registration.

Registration No.
28BZ200091
Registered Office
Head Office & Taga Plant
Period of validity
September 30, 2021 - September 29, 2026
Declaration on
Achieving the SDGs
Construction of a new plant with minimal impact on the surrounding environment

[ Overview ]
Our Gunge Factory is located between a small port town and a gentle green ridge line. As a result of our search for a corporate and factory architecture that is rooted in the local climate, people, and society, the volume structure and continuous sloping roof form of the factory, which is out of scale with its surroundings, minimizes the impact on the surrounding environment from near to far, and is an attempt to inherit the ancient landscape and create an original landscape of the future.
[ Points of the design ]
1. The impact on the surrounding environment was minimized by adjusting the scale by placing small offices and other facilities in front of the large processing plant.
2. The saw-tooth roof and continuous gable roofs were added as a reference to the mountain range and village in the background, creating an appearance that echoes the landscape.
3. A green promenade was established facing the road,and more than 120 trees of 34 kinds of plants native to the surrounding nature were planted and opened to the community. The "Awaji Forest" plan is to grow seedlings into a forest over a period of 10 years.

SDGs


Main ClientsAerospace Equipment
Kawasaki Heavy Industries, Ltd.
Sumitomo Precision Industries, Ltd.
Mitsubishi Heavy Industries, Ltd.
ShinMaywa Industries, Ltd.
Shimadzu Corporation
Nabtesco Corporation
Kobe Steel, Ltd.
Asahi Kasei Corp.
Kawanishi Aircraft Industry Co.

Others
Furuno Electric Co.
Nabtesco Corporation
Kyocera Corporation
Sumitomo Heavy Industries Ion Technology Co.
Fujitsu Isotec Corporation
Sumitomo Heavy Industries, Ltd.
        
Head Office & Taga Factory
Zip Code 656-1522, 301 Shimogawai,
Awaji-shi, Hyogo, Japan
tel: +81-799-85-1133
Access Map
MITSU SEIKI CO.,LTD.
Gunge Factory
Zip Code 656-1511, 97-1 Gunge,
Awaji-shi, Hyogo, Japan
tel: +81-799-85-1313
Access Map
MITSU SEIKI CO.,LTD.
organization chart

HISTORY

1933
Mitsu Ironworks founded in Ikuno-ku, Osaka. Manufactures parts for naval vessels.
1946
Moved to Gunge, Ichinomiya-cho, Tsuna-gun, Hyogo Prefecture. Begins manufacture and repair of marine engines
1954
Begins machining cylinders for internal combustion engines, primarily automobile engines
1959
Began production of accessory equipment and parts for knitting machines
1962
Reorganized as a joint-stock company.
1963
Gunge Factory is built for expansion and relocated.
1964
Begins introduction of machining centers.
1972
Designated as a model factory for rationalization of small and medium-sized enterprises by the Small and Medium Enterprise Agency
1975
Established Engineering Department and started designing and manufacturing secondary battery production line
1979
Designated as an excellent declaration corporation.  Began production of aircraft parts
1981
Constructed a dedicated assembly plant (Taga Factory No. 3)
1985
Started designing and manufacturing plastic molds
1986
Company name changed to MITSU SEIKI CO.,LTD.
1987
Spun off the Special Machine Division and established MITSU-TEC CO.,LTD.
1992
Taga Factory (No,1 and No,2) was built for expansion.
1995
Head office moved to Taga Factory.
2000
Started production of ship-related equipment
2001
Constructed Taga Factory No. 3, a dedicated assembly.
2003
Received "Minister of Health, Labor and Welfare Award" (related to skill tests)
2004
Received "Hometown Company Award" from the Minister of Internal Affairs and Communications. Began production of medical device parts.
2005
Obtained ISO9001:2000 and JISQ9100:2004 certification.
2012
Constructed a plant dedicated to aircraft parts (Gunge Factory No. 3). Full-Scale production of aircraft parts begins. Obtained ISO13485:2003 certification.
2016
Received "Hyogo Only One Company Award" and "Hyogo Work-Life Balance Company Award" from Hyogo Prefecture.
2017
Recognized as a "Regional Future Driving Company" by the Ministry of Economy, Trade and Industry.
2018
Received the "Governor's Award" in the 1st Health Promotion Challenge Company Awards from Hyogo Prefecture. Recognized as "Excellent Health Management Corporation 2018" by the Ministry of Economy, Trade and Industry
2021
Constructed the dedicated aircraft parts Factory (Gunge Factory No. 4).
2022
Certified and registered as a Hyogo SDGs declaration project (Certification No. 0008)
2023
Received special process certification for Non-Destructive Testing (Fluorescent Penetrant Inspection) based on ASTM E1417 and NAS 410 from Kawasaki Heavy Industries, Ltd.
Aircraft Exhibits