Ishii Machinery – Factory Tour
Ishii Machinery is a well-established SME manufacturer based in the city of Ashikaga, Tochigi Prefecture, with 70 employees. The company engineers and manufactures a wide range of industrial precision components and equipment which are mainly supplied to the automotive and aerospace industries.
Corporate Information
- Company: Ishii Machinery Co., Ltd.
- Foundation: 1888
- Location: Ashikaga, Tochigi Prefecture
- Main Business: Manufacturing of industrial precision components and equipment
Ishii Machinery – Lean Characteristics
5S, Just-In-Time Production
Ishii Machinery shares a history of monozukuri (Japanese art of making things – manufacturing) with the likes of Toyota and Suzuki Motor. Their origins lie in the manufacturing and sales of loom machines in the 1800s. Their product lines have expanded to equipment and components for the aerospace, automotive and other sectors.
Based in Ashikaga City which is known as the City of 5S where over 200 organizations participate in 5S activities on a daily basis, the company also has been actively involved in the Ashikaga-style 5S Program. 5S is used as the basis for their Just-In-Time production control system in only producing and transporting what is required, at the time it is required, in the quantity it is required. This is their response to the increasing expectations of their customers and society in general.
The plant tour includes a presentation, a site tour and a Q&A session with senior managers.

The one week Lean Japan Tour not only validates ‘how lean can make business sense’ but also provides the opportunity to learn and share with professionals across different industries.
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Excellent, from preparing the tour group on do’s and don’ts to guidance on what to watch out for every step of the way. Cannot recommend this enough if you are looking to learn how to resolve issues, and want to understand the lean approach from philosophy to theory to practice. Thank you very much, Paul,…
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Not for the fainthearted, this action-packed tour will blow you away. It’s a one-week learning adventure supercharged with information on TPS (Lean) principles. The learning experiences and companies visited far exceeded expectations. The Japanese managers we met were friendly and excited to share their experiences. If you desire change within your organisation and are not…
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Greenwood, Mississippi, United States
I thoroughly enjoyed the opportunity to learn the Toyota Production System from the source. I look forward to implementing the many findings in our plant. This experience has given me a different approach to improving our plant’s lean journey. Thank you again for everything.
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Riyadh, Saudi Arabia
Wonderful! I truly loved how we got a chance to see multiple tiers of the Toyota supply chain, and learned the true definition of some buzz words related to TPS. Getting a chance to see it all up-close was impactful.
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Dubai, United Arab Emirates
The tour was a great experience on both a personal and a professional level. There was much learning and the culture we encountered was inspiring. I want to thank the Shinka Management team for their efforts in organising such a great and professionally detailed program. It was a pleasure meeting you all.
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The Shinka Management Lean Japan Tour is a professional development program run several times annually. The program includes a mix of lean and kaizen seminars, hands-on lean training and visits to several benchmark lean companies. For further information and program dates, see the lean tour overview page.
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