Quality Assurance System
Quality Assurance in Design and Development
Kubota endeavors to prevent quality problems, and a representative activity in this effort is the initiative to strengthen design reviews. Incorporating the DRBFM*1 approach, we discuss, test and verify even the smallest incidental change when developing new products, in order to prevent quality problems from arising therefrom.
- 1 DRBFM is the abbreviation for “Design Review Based on Failure Mode,” a method of preventive action of potential problems from arising by focusing on incidental changes in design and development.
A design review
Quality Audits, Quality Compliance Audits, and Audits at Short Notice
The Kubota Group periodically conducts quality audits for the purpose of providing its customers with even better products and services, thereby ensuring the continuous improvement of its quality management system. Since FY2018, Kubota has been implementing quality compliance audits to verify that company products and services conform with laws and regulations, legal standards and the conditions set forth in contracts with Kubota’s clients. Moreover, audits at short notice are conducted whenever it is evaluated necessary under the internal control system.
Raising Awareness of Safety, Environment, and Quality
In November 2018, Kubota held the Safety, Environment and Quality Forum, attended by approximately 390 people, mainly management executives.
Mr. Noboru Furusawa, formerly of Toyota Motor Corporation and representing the organization Supporting Safety and Developing Human Resources, lectured on the theme, “Safety, environment, and quality are the basis of corporate activity: That’s what management is all about.”
Mixing specific examples drawn from his initiatives at Toyota Motor Corporation and his experience in providing guidance at Kubota, Mr. Furusawa emphasized the importance of people who continually work towards improvement, and of workplace formation.
Safety, Environment and Quality Forum (November 20, 2018)
QC Circle Activity
Starting in FY2017, eligibility for awards has been expanded to include both domestic and overseas subsidiaries and affiliates. For the QC Circle activities Presentation Competition held this fiscal year, 18 circles selected from 674 Kubota circles (domestic and overseas) participated.
Circles producing outstanding results participated in the QC Circle National Competition.
QC Circle activities Presentation Competition (November 2, 2018)
ISO 9001 Certification Status
Kubota [Farm and Industrial Machinery Consolidated Division]
|Business divisions/Offices||Certification scope (excerpt)||Date of
|Farm and Industrial Machinery
Consolidated Division and
(Departments affiliated with
the Farm and Industrial
Sakai Rinkai Plant
Okajima Business Center
Kyuhoji Business Center
|Agricultural machinery, construction machinery,
engines and related equipment for all the above
|Farm Machinery Products and
|Kyuhoji Business Center||Scales, load cells||1994.08||DNV*2|
- 1 LRQA: Lloyd’s Register Quality Assurance Ltd.
- 2 DNV: DNV GL BUSINESS ASSURANCE JAPAN K.K.
Kubota [Water and Environment and Infrastructure Consolidated Division]
|Business divisions||Main offices||Certification scope (excerpt)||Date of
|Pipe Systems and
|Ductile iron pipes, fittings, accessories, other ductile
iron products and related products
|Hirakata Plant||Pumps, pump stations, sewage treatment and water
purification plants, valves and gates
|Ichikawa Plant||Spiral welded steel pipes||1998.07||JICQA*2|
|Tokyo Head Office
|Sewage and sludge treatment, water purification
and wastewater treatment
|Shiga Plant||Plastic water purification tanks||2003.04||JUSE*4|
- 1 JCQA: Japan Chemical Quality Assurance Ltd.
- 2 JICQA: JIC Quality Assurance Ltd.
- 3 Intertek: Intertek Certification Ltd.
- 4 JUSE: Union of Japanese Scientists and Engineers
Affiliates in Japan
|Affiliates in Japan||Certification scope (excerpt)||Date of
|Kubota Seiki Co., Ltd.||
|Kubota ChemiX Co., Ltd.||
|Nippon Plastic Industry Co., Ltd.||
|Kubota Pipe Tech Co.||
|Kubota Environmental Service Co., Ltd.||
|Kubota Kasui Corporation||
|Kubota Air Conditioner, Ltd.||
|Kubota Systems Inc.||
|Heiwa Kanzai Co., Ltd.||
|Kubota Construction Co., Ltd.||
- 1 JSA: Japanese Standards Association
- 2 MSA: Management System Assessment Center Co., Ltd.
- 3 BCJ-SAR: The Building Center of Japan
- 4 JQA: Japan Quality Assurance Organization
- 5 BSI-J: BSI Group Japan K.K.
Overseas Group companies
|Affiliates||Certification scope (excerpt)||Date of
of America Corporation
|Kubota Europe S.A.S.||
|Kubota Farm Machinery
|KUBOTA (U.K.) Ltd.||
（Date of renewal）
(Some bases have been
|KUBOTA Turkey Makine
Ticaret Limited Sirketi
Machinery (Suzhou) Co., Ltd.
Machinery (Wuxi) Co., Ltd.
|Kubota Engine (Wuxi) Co., Ltd.||
|Kubota Sanlian Pump
(Anhui) Co., Ltd.
Corporation Co., Ltd.
|SIAM KUBOTA Metal
Technology Co., Ltd.
(Thailand) Co., Ltd.
|P.T. Kubota Indonesia||
|Kubota Saudi Arabia
- 1 CQS: Certified Quality Systems
- 2 ASB: ASB International Certification Surveillance, Auditing and Training Services
- 3 CQC: China Quality Certification Centre
- 4 CCS: China Classification Society
- 5 MASCI: Management System Certification Institute (Thailand)
Announcement on the Inappropriate Action Relating to a Record of Inspection Results (Actions to Prevent Recurrence)
We sincerely apologize again for causing concern and inconvenience to all our customers and parties concerned regarding “Kubota Corporation’s Statement on its Rolling Mill Roll Inspection Process” announced on September 12, 2018.
Regarding the inappropriate action, a thorough investigation has been conducted by an external law firm, and the report of the investigation has been accepted. Kubota has given serious consideration to the investigation results, and published the Report Regarding Inappropriate Conduct Relating to Inspection Report on November 29, 2018 and is implementing in sequence the measures to prevent recurrence described in the report.
Hereafter, Kubota Group will implement the recurrence prevention measures and strive fully to recover the trust of our customers and parties concerned as we work to make sure this type of misconduct never occurs again.