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Ishimura Lab
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The lab designs large structures extending through space by building on the interaction of forces.
AboutAbout the lab
Designing mechanical interactions.
The Ishimura Lab conducts research aiming to realize 'global structures,' large structures that extend across space.
Until now, external environmental forces have been treated as something to be removed in order to maintain a structure's shape and function; the lab takes the opposite stance and makes use of them.
It treats forces received from the environment and control forces as structural elements on par with structural members, and creates new systems by designing mechanical interactions.
Key terms
- Adaptive structure
- A structure that can change its own shape and state to suit its surroundings
- Truss
- A framework of slender bars assembled into triangles, combining light weight with strength
- Inflatable structure
- A structure that is transported folded and then inflated with gas to form a large shape
NewsLab news
An undergraduate student received the Hatakeyama Award from the Japan Society of Mechanical Engineers.
An undergraduate student received an Excellence Award at the Conference on 4D and Functional Fabrication 2025.
Prof. Ishimura was recognized as a Fellow of the Japan Society for Aeronautical and Space Sciences.
An undergraduate student received the Young Presentation Excellence Fellow Award from the Kanto Branch of the Japan Society of Mechanical Engineers.
ResearchResearch themes
The lab comprehensively studies the structures and mechanisms of space structures from a whole-system perspective. Its work spans structural concepts, individual structural elements, and measurement methods, and connects them to deployable masts for scientific observation and to studies of how to construct very large space structures such as space solar power satellites.
*Illustrative imageStructures and Mechanisms of Space Structures
The lab comprehensively studies the structures and mechanisms of space structures from a systems perspective. Its work covers structural concepts such as adaptive structures, research on individual structural elements, and measurement methods, and is applied to developing deployable masts for scientific observation and inflatable deployable structures.
*Illustrative imageHigh-Precision Space Structural Systems
This research aims to improve the precision of large space structures, with the goal of zero deformation in orbit. Targeting deployable trusses that support X-ray astronomy satellites and synthetic aperture radar, the lab develops improved deployment repeatability, shape control using thermal expansion, and high-precision displacement measurement devices.
*Illustrative imageConstruction of Very Large Space Structures
The lab studies the concepts and construction methods for large space structures such as space solar power satellites, as well as structures on the Moon and planets. It also covers the dynamics and control of flexible structures, trusses stabilized by tension, and automated construction through autonomous distributed control of modules.
*Illustrative imageLightweight Space Structures and Deployment Mechanisms
This research focuses on lightweight, highly rigid space structures, as required for items such as large solar array paddles. Using inflatable structures with many cells as core material, the lab first examines the structural configuration, then evaluates and improves mechanical properties through analysis and testing.
MembersFaculty
Members of the Ishimura Lab are faculty and students in the master's and undergraduate programs.As of 2025
- ProfessorKosei Ishimura
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: “The Alpha Magnetic Spectrometer on the International Space Station’s starboard truss structure (iss075e0068625)” NASA Johnson Space Center / Public domain (cropped)
- Structures and Mechanisms of Space Structures: “The Secrets of NASA's Webb Telescope’s "Deployable Tower Assembly" ( )” NASA Goddard Space Flight Center from Greenbelt, MD, USA / Public domain (cropped)
- High-Precision Space Structural Systems: “ISS s3-s4 truss hoist in the SSPF factory” NASA KSC / Public domain (cropped)
- Construction of Very Large Space Structures: “Fifteen Years Ago, International Space Station Assembly Begins” NASA / Public domain (cropped)
- Lightweight Space Structures and Deployment Mechanisms: “One of five THEMIS satellites undergoes a solar array test” NASA/Jack Pfaller / Public domain (cropped)
- Related lab (宮下研究室): “Leaf skeleton in Foreste Casentinesi” Mmma98 / CC BY-SA 4.0 (cropped)
- Related lab (上杉研究室): “Shōfū-an the view of the roji from the nijiriguchi of the koma Chūō-ku Fukuoka” Hirho / CC BY-SA 4.0 (cropped)
- Related lab (滝沢研究室): “Orion CPAS parachute drop test - Mains deploy” NASA/JSC / Public domain (cropped)
- Related lab (松原研究室): “Photoelasticity - Spiked castor cup” Colin / CC BY-SA 4.0 (cropped)
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