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.

Sanaswadi, Maharashtra, India
I am deeply grateful to Shinka Management, and to Paul, Eri and Ichi, for an outstanding Lean Japan Tour experience. Their expertise and hospitality made the journey both educational and enjoyable. The insights gained from visiting world-class lean organizations were invaluable, and the dedication of the Shinka team to ensuring we absorbed practical knowledge was…
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Rolleston, New Zealand
This was an extremely insightful tour. Very well run by Paul and the team from Shinka Management. Highly recommended.
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Nelson, New Zealand
Amazing experience, exceptional learning. If you want to learn about Lean go on this tour!
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Dubai, United Arab Emirates
Learning 5S and TPS while experiencing and living the Japanese culture through communication, direct interaction and viewing various live examples from different perspectives, created a solid reference for us to understand the main reason behind the success of these systems. This is a complete lifestyle that involves human contribution, a continuous thrive for improvement, and…
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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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Bikfaya, Lebanon
Life changing experience. The tour was extremely well prepared: 1. In terms of logistics and schedule, everything was organized to provide enough time for full day efficiency without putting too much physical or cognitive strain. 2. In terms of quality of information, the senseis’ knowledge is world-class level and they were more than willing to…
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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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