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.

Adelaide, South Australia, Australia
I have thoroughly enjoyed the lean tour to Japan. Not only have I learned lots of new concepts that I’m keen to implement in our business, but I also loved the cultural experiences and insight into the people of Japan. The tour organizers bent over backward to make us feel welcome and anticipate our every…
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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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Pforzheim, Germany
The Lean Japan Tour was the best lean management experience I have had. I wish I had done this earlier, so I could have done some things differently. One learns that some aspects of lean that one thought one knew, really have a different dimension to them. It helps to see lean management where it…
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Vöcklabruck, Austria
This trip really enlightened me in some specific lean topics and showed me all the beneficial aspects of lean manufacturing. The biggest take away for me was a deeper appreciation of not just the tools but the philosophy. The way the trip was organised and flowed was amazing. Thanks to Paul and David from Shinka…
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Buenos Aires, Argentina
The March 2025 Lean Japan Tour was an incredible opportunity to experience Japanese culture and kaizen practices firsthand. I would rate my overall satisfaction with this tour as outstanding. Honestly, it is very difficult to identify areas for improvement in the program, as it is executed with such professionalism and extensive experience. The dedication and…
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Adelaide, SA, Australia
Thank you to the Shinka team for a wonderful experience in Japan. The housing mission was professionally organised and executed by Paul, Eri, and the team. The lead-up information provided before heading to Japan was excellent and greatly helped with preparation. Once in Japan, the tour was so efficient that we were able to see…
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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.
Tour Inquiries
Interested in joining us in Japan? For additional information prior to registration please fill in the form provided or contact us.
