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 whole tour was very professionally undertaken and led. Paul and Ben have to be congratulated for putting together a very informative and very enjoyable experience. The itinerary was excellent and to see from the raw material all the way through the supply chain through to the finished product was superb. I loved the thought…
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I enjoyed every aspect of this extremely well organised kaizen tour including: factory visits, translations by Paul and Ben, TPS training, sightseeing, accommodation, transportation, and meals. This tour is a must for anyone trying to understand / implement LEAN into their business or organisation. I hope the tour continues for many years to come as…
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I thoroughly enjoyed my time on the November 2013 tour. I learned so much about Japanese culture and TPS. Despite coming from the IT industry, I was able to gain valuable insights on the philosophy and principles of Lean that I can apply in my industry. Ben and Paul are top-notch guides. Their wealth of…
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I highly recommend the Lean Japan Tour – it provided a very good insight, was well organised and is led by guys who are clearly very passionate for lean and Japan.
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From a remote rural engineering company – to the shining lights of Japan’s finest. I have returned overwhelmed from the experience to learn from some of the worlds best manufacturers and absorb decades of experience from my fellow peers. Highly recommended and treat it as a sound investment for your company’s future!
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Wow. What a great experience not just from a learning perspective but also a great cultural experience as well. From the start the group came together really well. It was a perfect mix of practical and theory, and to gain an insight into the Toyota Production System and see it in action at all the…
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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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