Research Introduction

The core properties of fluids—fluidity, isotropic transmission, and high-power density—form the foundation of our work. At the Tsukagoshi Lab, we fuse these properties with advanced robotics to pioneer a brand-new concept: "Fluid Robotics."
Our ultimate goal goes far beyond mere fluidic actuation. We aim to integrate the entire loop—from sensory reception and information processing to actual physical actuation—solely via "fluidic signals." By doing so, we create a next-generation "Bio-functional Fluid Robot" that possesses an amoeba-like, highly flexible adaptability.
"Why Fluids?"
- Flexible Environmental Adaptability: Fluids inherently possess unique advantages: mechanical adaptability, the ability to navigate through extremely narrow spaces, and "back-drivability" (the capacity to compliantly conform to external loads), which is notoriously difficult to achieve with conventional electric motors.
- Omnidirectional Sensing: Unlike standard electronic sensors that are strictly directional, fluids propagate pressure signals with isotropic transmission characteristics based on Pascal's principle. This allows the robot's physical body to exhibit superior information transmission and environmental harvesting capabilities.
- Resilience to Extreme Environments: Medical and welfare fields where electric shocks, heat generation, or ignition are strictly prohibited; electromagnetic-free MRI environments; and deep space applications subject to high radiation and extreme temperatures that destroy semiconductors—these regions, where conventional electronically-controlled robots cannot survive, are our primary battlegrounds.
"Our Three Core Challenges" (Refer to the diagram above)
- Fluidic Soft Actuators: Realizing life-like, highly flexible, and supple motions.
- Fluidic Information Processing: Challenging the boundaries of "computation and decision-making via fluids," minimizing reliance on electronic circuits.
- Fluidic Bio-Systems: Constructing "Bio-functional Fluid Robots" whose receptors, nervous systems, and movements manifest integrated functionality akin to living organisms.
“Our Philosophy”
We passionately pursue "New Concepts, New Principles, and New Movements." We focus our energy not on "what seems feasible," but on "what would be revolutionary if achieved."
We firmly believe that true breakthroughs arise from accidental discoveries in the laboratory—serendipity—that transcend mere desk-bound theories. Above all, we deeply cherish the spine-tingling thrill and pure joy of watching something we created with our own hands move for the very first time.
“Message”
As you can see, we embrace an exciting, distinctive research style that sets us apart from conventional robotics labs. If you resonate with our vision and are inspired by our challenges, we warmly invite you to knock on the door of the Tsukagoshi Lab!