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Ishigaki Lab
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The lab models and optimizes the flow of goods in supply chains.
AboutAbout the lab
Developing methods to model and manage the flow of goods
Ishigaki Lab's main research areas are supply chain management, operations research, and marketing.
The lab covers a wide range of research themes, centered on the fields that students are interested in.
There are also many examples of joint research with companies and research institutes.
The lab's motto is "Give everything your all, and have fun."
Key terms
- Supply chain
- The flow by which a product reaches us through procurement, production, distribution, and sales.
- Combinatorial optimization problem
- A problem of choosing the best option that satisfies the given conditions from among combinations of many choices.
NewsLab news
A master's student received the Outstanding Presentation Paper Award of the Production Systems Division (FY2025) from the Japan Society of Mechanical Engineers
Received the Fighting Spirit Award at the Reiwa 7 (FY2025) Data Analysis Competition, JIMA Subcommittee
Received the Outstanding Presentation Award at the 44th Annual Conference of the Japan Society for Natural Disaster Science
Received an award at the poster competition of the DX course
Received the Best Presentation Award at the FY2025 Spring Research Presentation Meeting of the Japan Society for Equipment Management
ResearchResearch themes
Ishigaki Lab models the flow of goods in supply chains and develops methods to manage it. It treats management-related problems as combinatorial optimization problems, and also aims to apply production management and operations research methods to solve a variety of problems in social systems.
*Illustrative imageOptimization of Multi-Stage Production and Logistics Systems
The products around us reach us through procurement, production, distribution, and sales. The lab models the "flow of goods" in this supply chain and develops methods to manage it.
*Illustrative imageCombinatorial Optimization Problems and Algorithms
Many management-related problems are formulated as combinatorial optimization problems. The lab models various scheduling problems and develops methods to optimize them.
*Illustrative imageApplications of Production Management and Operations Research Methods
The lab applies production management and operations research methods widely, not only to production systems. It aims to solve a variety of problems in social systems.
MembersFaculty
The lab's members consist of faculty, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorAya Ishigaki
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “PM-International European Logistics Center in Speyer, Germany” PM-International Kommunikation / CC BY-SA 4.0 (cropped)
- Optimization of Multi-Stage Production and Logistics Systems: “Container-Terminal Bremerhaven 02” H. Zell / CC BY-SA 3.0 (cropped)
- Combinatorial Optimization Problems and Algorithms: “Northbound Capitol Corridor train passing Santa Clara station, December 2007” Todd Evans / CC BY 2.0 (cropped)
- Applications of Production Management and Operations Research Methods: “Continental AG tire factory Mittellandkanal Stoecken Hannover Germany 02” Christian A. Schröder (ChristianSchd) / CC BY-SA 4.0 (cropped)
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