Research labs at Japan's QS Top 10 universities including Tokyo, Kyoto, and Osaka.
Professor Satoshi Utsunomiya's research lab specializes in the atomic-scale characterization of trace and ultra-trace contaminants in environmental matrices, with a focus on nanoscale heavy metals, radionuclides, and their speciation in airborne particulates, water-borne colloids, and post-accident environments. The lab employs advanced electron microscopy techniques—particularly HAADF-STEM and HRTEM—to investigate the morphology, chemical speciation, and environmental behavior of nanominerals and nanofragments from nuclear accidents, coal combustion, and natural ore deposits. A central theme is understanding how nanoscale encapsulation or mineral association influences the mobility, stability, and environmental risk of hazardous elements such as uranium, cesium, lead, and arsenic.
Professor Kiyoko Kato's research lab focuses on molecular mechanisms underlying cancer cell signaling, particularly Ras oncoproteins and their post-translational modifications that drive transformation and membrane localization. The lab also investigates stem cell biology in the human endometrium, including side population (SP) cells and endometrial cancer stem cells (CSCs), with a focus on their role in fertility, receptivity, and tumorigenesis. Using primary cell cultures and molecular techniques, the lab explores how cellular microenvironments during the proliferative phase influence embryo implantation and stemness. A key direction involves identifying small molecules, such as salinomycin, that selectively target cancer stem cells.
Professor Thomas Lippert's research lab specializes in the fundamental investigation of laser-material interactions, particularly focusing on pulsed laser deposition (PLD) of functional oxide thin films and the ablation mechanisms of polymers. The lab explores the synthesis, growth, and characterization of epitaxial and heteroepitaxial thin films—especially perovskites and rare-earth doped oxides—emphasizing how process parameters influence film structure, stress development, and functional properties. A key focus is in situ monitoring of film growth and stress evolution using advanced techniques like optical wafer curvature, enabling precise control over crystallinity and defect engineering. The lab also investigates UV and VUV laser-induced surface modification of polymers, aiming to understand and optimize photochemical and photothermal ablation processes for advanced materials processing.
Professor Evgeny A. Podolskiy's research lab specializes in glaciological seismology and cryospheric dynamics, focusing on using seismic signals to investigate glacier processes such as calving, basal motion, and ice fracture. The lab explores the physical connections between seismic activity, ice flow, and environmental factors like temperature and tides, particularly in high-altitude and debris-covered glaciers. A key emphasis is placed on understanding microseismicity and thermal stress in glaciers, especially in the Himalayas, where climate and debris cover significantly influence ice behavior. The lab also applies advanced numerical methods, such as finite-element modeling, to simulate and interpret glacier mechanics and avalanche triggering by seismic waves.
Professor Kazuyasu Sakaguchi's research lab focuses on the molecular mechanisms underlying tumor suppressor protein p53, particularly its post-translational modifications, tetramerization, and functional regulation in response to DNA damage. The lab investigates how phosphorylation, acetylation, and other modifications modulate p53's stability, DNA-binding activity, and transcriptional function, with a strong emphasis on the structural and biochemical basis of p53 oligomerization and its role in tumor suppression. Additional research explores the interactions of viral proteins, such as HIV-1 NCp7, with nucleic acids, revealing insights into viral replication and RNA-protein recognition. The lab integrates structural biology, biochemistry, and molecular virology to understand critical regulatory nodes in cancer and viral pathogenesis.
Professor Hayaho Sato's research lab specializes in advanced electromagnetic design and optimization of electrical machines, particularly permanent magnet motors, using cutting-edge computational techniques. The lab focuses on developing intelligent surrogate modeling methods—such as neural networks, convolutional neural networks, variational autoencoders, and Monte Carlo tree search—to accelerate multi-objective topology and material optimization while minimizing reliance on expensive finite element analysis. Their work integrates machine learning with electromagnetic field computation to achieve high-performance motor designs with improved torque, reduced iron loss, and enhanced manufacturability. The lab also explores the microstructural influence on electromagnetic properties, including soft magnetic composite materials and self-assembled surface layers.
Professor Junjun Jia's research lab specializes in the fundamental physics and materials science of wide-bandgap oxide semiconductors, with a focus on transparent conducting oxides (TCOs) and amorphous oxide semiconductors. Key research directions include the electronic structure and carrier transport mechanisms in doped ZnO and IGZO films, defect engineering in oxide thin films, and the role of ion bombardment and sputtering parameters in thin-film microstructure and stability. The lab employs advanced in situ and in operando characterization techniques such as synchrotron-based spectroscopy, transmission electron microscopy, and in situ ion detection to probe electronic transitions, defect dynamics, and interface phenomena at the atomic scale.
Professor Toshi H. Arimura's research lab specializes in energy economics and environmental policy, focusing on the cost-effectiveness of energy efficiency and demand-side management programs, carbon pricing mechanisms, and emissions trading schemes. The lab conducts rigorous econometric analyses using micro-level data to evaluate the long-term impacts of policy interventions on energy demand, greenhouse gas emissions, and industrial behavior. A key research direction involves assessing the effectiveness of climate policies in Asia, particularly in Japan, with comparative insights from North America and Europe.
Professor W. L. Quint Oga-Baldwin's research lab specializes in second language motivation, particularly focusing on young language learners in elementary education contexts. The lab investigates how gender, teacher practices, and the strategic use of students’ first language influence motivation, engagement, and the development of self-regulated learning. Central to the lab’s work is the application of self-determination theory to understand how psychological needs—competence, autonomy, and relatedness—are met in foreign language classrooms to foster long-term language learning success.
Professor Rei Yamashita's research lab specializes in sport tourism, event management, and destination branding, with a strong focus on international sport tourists, participatory events, and the role of perception in shaping loyalty and behavioural intentions. The lab investigates how information search behaviour, prior knowledge, and destination reputation influence tourist engagement and loyalty, particularly in rural and community-based tourism contexts. A key research direction involves understanding the social impacts of parasports and inclusive events, especially through spectators' perceived well-being and support for parasport. The lab employs quantitative methods such as structural equation modelling and survey-based research to explore the psychological and social dynamics of sport tourism and event experiences.
Professor Atsushi Hotta's research lab specializes in the design and synthesis of advanced polymeric materials with tailored microstructures and mechanical properties. The lab focuses on block copolymers—particularly semicrystalline and thermoplastic elastomers—exploring their phase behavior, morphology, and dynamic mechanical responses. Key research directions include the control of microphase separation, stress relaxation dynamics in complex soft materials, and the interplay between molecular architecture and macroscopic properties. The lab also investigates liquid crystalline elastomers and their relaxation behavior during structural transitions.
Professor Satoru Miyawaki's research lab focuses on cerebrovascular diseases, particularly intracranial atherosclerotic stenosis (ICASO) and moyamoya disease (MMD), with a strong emphasis on the genetic and pathological mechanisms underlying these conditions. The lab investigates the role of the RNF213 c.14576G>A variant as a high-risk allele for ICASO, exploring its association with vascular remodeling and neuronal cell death. Additionally, the lab integrates histopathological analysis with imaging mass spectrometry (IMS) to uncover early molecular changes in ischemic brain injury, particularly in the hippocampal CA1 region. The research also extends to perioperative cerebrovascular and cardiac complications in carotid interventions, especially in elderly patients.
Professor Junho Choi's research lab specializes in advanced tribological materials and surface engineering, focusing on the development of smart, self-sensing, and self-lubricating systems for high-performance mechanical and electronic applications. Key research directions include the design of diamond-like carbon (DLC) and amorphous carbon-based coatings with tailored microstructures for enhanced wear resistance and low friction, the integration of self-powered sensing via triboelectric nanogenerators in mechanical components such as bearings, and the optimization of ultrathin lubricant films for magnetic storage devices. The lab also investigates surface modification techniques, including plasma treatment and self-assembled monolayers, to control interfacial properties at the nanoscale.
Professor Jun’ichi Yokoyama’s research lab specializes in theoretical cosmology, focusing on the formation and astrophysical implications of primordial black holes (PBHs) in the early universe. The lab investigates inflationary dynamics, particularly chaotic and new inflation scenarios with non-trivial scalar field potentials, and examines how primordial density fluctuations lead to PBH formation. Key research directions include the spectrum of curvature perturbations during inflation, the statistical and gravitational collapse dynamics of density peaks, and cosmological constraints on PBH abundance across a wide mass range—from Planck-scale relics to supermassive black hole candidates.
Professor Hironao Miyatake's research lab specializes in cosmology and large-scale structure, focusing on the galaxy-halo connection, weak gravitational lensing, and cosmological parameter inference. The lab employs advanced statistical and computational methods—such as halo modeling, emulators, and joint clustering-lensing analyses—to probe dark matter distribution and test the standard cosmological model. Current work emphasizes detecting subtle effects like halo assembly bias and resolving the Hubble tension through high-precision observations from surveys like SDSS, BOSS, and Hyper Suprime-Cam. The lab also develops fast, accurate simulation-based tools to interpret cosmological data efficiently.
Professor Nozomu Kono's research lab focuses on cellular lipid metabolism and its role in metabolic diseases, with a particular emphasis on the intracellular transport and regulation of fat-soluble vitamins, especially vitamin E. The lab investigates how lipid composition, membrane dynamics, and oxidative stress influence cellular homeostasis, particularly through the unfolded protein response (UPR) and lipid-sensing mechanisms. Key research directions include the molecular mechanisms of lipid-binding proteins such as α-tocopherol transfer protein (α-TTP), the role of phosphatidylinositol phosphates (PIPs) in lipid trafficking, and the protective functions of enzymes like PAF-AH (II) in mitigating oxidative damage. The lab integrates structural biology, cell biology, and metabolic disease modeling to uncover novel pathways in liver metabolism and neurodegenerative disorders.
Professor Wataru Sato's research lab focuses on the neural and cognitive mechanisms underlying human social perception, particularly the processing of facial emotions. The lab investigates how dynamic and static facial expressions are perceived, represented, and recognized in the brain, with a strong emphasis on emotionality, social cognition, and individual differences in conditions such as autism spectrum disorder (ASD). Using neuroimaging (fMRI, structural MRI), electrophysiological methods (ERP, ICA), and behavioral analyses of facial animation, the lab explores the interplay between brain structure, function, and subjective experience—especially in relation to happiness and emotional communication.
Professor Kazuya Otsubo's research lab specializes in the design, synthesis, and characterization of advanced functional nanomaterials, with a focus on metal-organic frameworks (MOFs), nanowires, and low-dimensional semiconductors. The lab pioneers the development of highly oriented, crystalline thin films of MOFs and explores their electronic, structural, and transport properties under extreme conditions such as high pressure. Key research directions include the rational control of electronic states in ultrafine nanowires and the engineering of semiconductor heterostructures for high-speed photonic and electronic devices. The lab combines advanced characterization techniques like synchrotron XRD and high-pressure measurements to achieve atomic-level understanding and control of materials properties.
Professor Kenji Yamashiro's research lab focuses on the genetic and molecular mechanisms underlying age-related macular degeneration (AMD) and its subtypes, including neovascular AMD (nAMD), polypoidal choroidal vasculopathy (PCV), and retinal angiomatous proliferation (RAP). The lab employs genome-wide association studies and functional genomics to identify susceptibility loci and elucidate the biological pathways involved in disease progression. A key focus is on understanding the genetic heterogeneity among AMD subtypes, particularly the distinct roles of variants in genes such as CFH, ARMS2, and others in disease pathogenesis. The lab's work aims to improve disease classification, enable early diagnosis, and support the development of targeted therapies.
Professor Mizuki Takenaka's research lab focuses on the molecular mechanisms underlying RNA editing in plant mitochondria and chloroplasts, with a central emphasis on the roles of pentatricopeptide repeat (PPR) proteins and MORF (Multiple Organellar RNA Editing Factor) proteins in mediating site-specific C-to-U RNA editing. The lab investigates how these proteins recognize specific RNA sequences upstream of editing sites and how their structural diversity—particularly in PPR motifs such as P, S, L, and E domains—determines target specificity. Using reverse genetics, mutant screens, and molecular genetics in *Arabidopsis thaliana*, the lab identifies and characterizes novel editing factors essential for organellar gene expression and cellular function.
