Members

Major

Materials science, Nanoscience, Interdisciplinary field of chemistry and physics

Research Keywords

Coordination chemistry, Electrochemistry, Polymer science, Inorganic chemistry, Nanoscience

SDGs Initiatives

Research Summary

Coordination nanosheets are ultrathin films of two-dimensional conjugated polymers composed of metal ions and planar organic π ligands. We first reported coordination nanosheets exhibiting metallic properties in 2013. Coordination nanosheets can be synthesized under mild conditions by bottom-up complexation reactions between metal ions and organic molecules. Since it is possible to create a wide variety of chemical and geometric structures leading to various physical properties, chemical properties, and mechanical properties, the ripple effect of coordination nanosheets on science and industry is immeasurable. We will establish high-quality synthesis of novel functional coordination nanosheets, clarify their physical and chemical properties, and create composite systems such as heterolaminates and conjugates to exhibit their unique physical and chemical functions and explore applications to electronic, magnetic, and optical devices, as well as energy conversion and storage devices.

Major

Physics of superconducting quantum circuits using nano-Josephson junctions and their applications, superconducting quantum information processing, quantum computers, superconducting artificial atomic quantum optics, materials science.

Research Keywords

Low temperature solid state physics

SDGs Initiatives

Research Summary

We studies quantum circuits based on superconducting qubits that utilize Josephson junctions. Regarding the integration of qubits, we are conducting research on quantum chips that can be mounted on a plane using a pseudo-two-dimensional qubit coupling network that we have developed. We are also conducting research on quantum information processing using superconducting Kerr parametric oscillators (KPOs) as bosonic qubits. We generated a cat state with KPO, evaluated the fidelity using a quantum tomography, and succeeded in manipulating a 1-bit gate. In the future, we will proceed with experiments on 2-bit gates and autonomous error correction in KPO. We are also conducting research on the initialization of superconducting qubits. In a quantum optical circuit using a new superconducting artificial atom with a resonator and superstrong coupling, we succeeded in simultaneously exciting two atoms with a single photon.

Major

fire safety design of buildings, evacuation plan

Research Keywords

evacuation safety, fire safety design, fire safety engineering, fire risk

SDGs Initiatives

Research Summary

The main research theme is technology and design methods to ensure fire safety in buildings, especially evacuation safety. Although the Building Standards Law was revised in 2000 and performance requirements were partially introduced into the fire safety provisions, various issues still remain. In order to clarify the necessary fire safety and ensure it through design, it is essential to determine how to set the design fire source, predict fire characteristics, and predict evacuation characteristics. Specifically, we will address various issues such as ensuring two or more escape directions, barrier-free evacuation safety design, arrangement of emergency escape facilities, performance for supporting firefighting activities, evaluation of emergency and rescue openings, and the security system on evacuation routes. We are currently conducting research on proposing performance evaluation methods and specific standards.

Major

Building and spreading of digital twin in manufacturing – Bring innovation by connecting the physical and cyber worlds

Research Keywords

Aerospace engineering, Computational engineering

SDGs Initiatives

Research Summary

Recently, the term "digital twin" has become commonplace everywhere. The aim of the digital twin is to create new value and convenience by connecting the real world (physical) and virtual space (cyber/digital) in real time. In particular, we focus on "manufacturing" and aim to expand the applications by incorporating digital twins into design, production, and operations through research and development on the efficient production of digital twin framework and the data linking in engineering chains. We also aim to contribute to human resource development by the digital twin.

Major

Supramolecular chemistry, Coordination chemistry, Organic chemistry, Bioinorganic chemistry

Research Keywords

Supramolecular metal complexes, Multi-element metal ion clusters, Element-centered chirality and supramolecular chirality, Asymmetric catalysis, Optical bioanalysis

SDGs Initiatives

Research Summary

Supramolecular chemistry deals with complexes and aggregates of molecules and ions that are formed spontaneously through relatively weak bonds and interactions other than covalent bonds. The structure and function of supramolecules are programmed in the process of self-organization of the constituent molecules and ions, and so supramolecular chemistry is creating a major trend in molecular systems chemistry based on precise design.
In our laboratory, we are working to create supramolecular metal complexes with new structures, properties, reactivity, and functions by utilizing the properties of precisely designed organic ligands and metal elements. Specifically, we are synthesizing, polymerizing, and asymmetrically inducing multi-element metal ion clusters centered on a carbon or a nitrogen atom that we have developed ourselves, and are using highly phosphorescent clusters for photobioanalysis of living cells and highly reactive clusters for catalytic reactions. In addition, we are exploring methods for asymmetric induction and configuration stabilization of metal complexes that have chirality only at the metal center.

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High-speed tracking based on high-speed image processing, dynamic interactiono

Research Keywords

High-speed image processing, inspection, phosphorescent, visual latency, motion blur

SDGs Initiatives

Research Summary

The research includes clarifying the relationship between task performance in human behavior and high-speed image processing, and accurately capturing fine cracks in tunnel walls from a high-speed vehicle. Those researches form a style of dialogue with new perceptual methods and technologies in the real world.

Major

High-speed image processing, CV/CG, AR/VR

Research Keywords

Computer vision, Computer graphics

SDGs Initiatives

Research Summary

I have been involved with CV/CG, and XR technologies realizing innovative applications based on high-speed vision. The performance of a system is limited by the lack of even a single component of input, processing, and output. Hence, I aim to build systems that far exceed conventional performance by comprehensively designing sensing, algorithms, and displays based on mathematics, physics, and the output destination system, the human. So far, I have realized high-speed measurement system for 3D shape, motion, texture, and material, and new visual media expressions such as dynamic projection mapping.

Major

Functional Materials、Nanoscience

Research Keywords

Photocatalysis, Nano, Environmental purification, semiconductor thin films, optoelectronic devices

SDGs Initiatives

Research Summary

The energy crisis, environmental issues, and the realization of carbon neutrality are the challenges of this century. Nanomaterials and devices with new functions are required to solve the energy and environmental issues. At present, we are making effective use of nano, renewable, and composite techniques, and working with the three pillars of experiment, theory, and application, especially in the areas of renewable energy, environmental purification, and carbon neutrality.

Major

IoT-oriented manufacturing technology by introducing the mass separation technique

Research Keywords

Ion beam, Instrumental analytical chemistry

SDGs Initiatives

Research Summary

I am developing IoT-oriented manufacturing technology by introducing the mass separation technique using ion beams. This study will help us to realise the ultimate fabrication process ruled on periodic law. The mass separators can principally control ionic weights determined by periodic law and the existence of isotopes. Our original mass separator can be installed in the stream of ion beams and selected elements from the metallic solution ion source. This technique can revolutionize the materials driven fabrication process to the periodic driven fabrication process. I believe the realization of our project goals will represent a kind of revolution for academic and industrial studies in this area.

Major

Thermal Conductivity Analysis of Single-walled Carbon Nanotubes Based on Photoluminescence Imaging Spectroscopy

Research Keywords

Carbon Nanotube, Electron Microscope, MEMS, Microspectroscopy

SDGs Initiatives

Research Summary

We aim to establish nanoscale thermal control technology by measuring the thermal properties of single-walled carbon nanotubes (SWCNTs) using photoluminescence or Raman spectroscopy. Furthermore, we will also work on research and development of optical isolators and related devices using SWCNTs. In parallel with my research activities, I would like to actively engage in activities aimed at disseminating science and technology and giving back to the world.

Major

Robotics, Human-Robot Interface, Human-Robot interaction

Research Keywords

Robot, High-speed vision, HRI

SDGs Initiatives

Research Summary

In order to realize intelligent robots for manufacturing, we are proposing dynamic compensation framework based on a coarse-to-fine strategy by utilizing high-speed vision (e.g. 1000 fps) technologies. Furthermore, we are working on human-robot systems that go beyond human limitations by utilizing high-speed machine assistance both in sensing and actuation. Besides, we also develop high-speed robotic manipulation strategies for rigid and flexible objects with the use of high-speed visual feedback.

Major

Creation of Metal Nanoclusters with Novel Functions

Research Keywords

Nanomaterial, Precise synthesis

SDGs Initiatives

Research Summary

Can a metal be considered a metal even if it is reduced to the smallest possible size?
In a material called "metallic nanoclusters," in which several to several dozen metal atoms are gathered together, even a single atom can change its color, luminescence, magnetism, conductivity, and various other physical properties.
The properties of these materials are completely different from those of ordinary metals.
I synthesize metal nanoclusters with novel functions and study what factors are responsible for their physical properties.

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High-speed image processing, Dynamic Vision System

Research Keywords

High-speed tracking, Optical control, Image measurement

SDGs Initiatives

Research Summary

The real world, including humans, is fundamentally dynamic, and many conventional sensing methods have not been able to handle it due to the difficulties involved. I have a research concept called Dynamic Vision System, and construct a system for adaptively measuring, understanding, and applying dynamic objects using a vision system with devised optics. I aim to establish and develop new image measurement technologies through the development of basic technologies that elaborate on optics and processing systems and the deployment of various applications to dynamic objects in a wide range of fields such as image media, inspection, sports, and medicine.

Major

Coordination chemistry, Electrochemistry

Research Keywords

Two-dimensional materials, Coordination nanosheets

SDGs Initiatives

Research Summary

We have researched “Coordination Nanosheets” which are two-dimensional materials composed of metal ions and organic ligands. Two-dimensional materials have sheet-like morphologies with nanometer thicknesses (1/1,000,000 mm). The characteristic chemical structures induce physical and chemical properties unobservable in general bulk materials. In addition to these features of two-dimensional materials, coordination nanosheets have been expected to achieve a wide variety of chemical structures and functionalities by utilizing the various combinations of metal ions and organic ligands as the components. I have mainly researched the synthesis of newly designed coordination nanosheets, the development of synthetic procedures for coordination nanosheets, and the evaluation of their electrocatalytic properties.

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