I am studying the various phenomena which happen when accelerating an electric charge particle of monoatomic ion, a molecule ion and a cluster ion and irradiating the solid.
A target in our laboratory is to develop all kinds of computer simulation cords about the interaction between the ion and the solid, and to do an analysis of a phenomenon and a guess in the several fields of the ion engineering.

Sino-Japanese floristic region, including the flora of Japan, has high plant diversity. Primary focus of my research is to understand how plants diversified and evolved in the region. To achieve it, I have conducted researches based on field works, morphological observation, and molecular analyses from the viewpoint of different geographical scale and different evolutionary status. Especially, I focus on endemic plant groups in the region (Aucuba, Helwingia, Pertya, etc.), plant groups diversified in the region (Aristolochia, Arisaema, etc.), and endemic plants in the Ogasawara Islands.

We aim to contribute to the development of the wine industries and education, through our research.
Research and invstigation into wine, Japanese sake, fruits and functional foods. Invesigation of volatile compaounds in wine and its produvtion mechanisms. Especially, advanced analysis and evaluation of wine.Wine has favorable and characteristic flavor. We indentify the characteristic compounds in wine and investigate their production mechanisms.
Wine have multiple health functionalities since it is a fermented material. We investigate the health functionality of wine and fermented foods in vitro.And, we investigate the health functinalities of functinal components fermented foods.

Most of the reserch on grape is about table grapes in Japan. Because wine grapes are not cultivated so much before. However, recently many wine grapes have been cultivated, and high quality wines are produced in several wineries in Japan. Until now engineers in wine makers have studies in the wine developped countries such as France and brought back the wine making techniques to Japan. But, Japanese climate and soil type are quite different from those of foreign countries. Then it is required to the Japanese original techniques in viticulture and enology. It is the most important thing in wine making that wine grapes are cultivated by the suitable conditions in Japan. Our institute of viticulture and enology aims to be a base for technology and information for engineers in wineries of the surrounding ares.

We not only analyze the health status of humans, animals, the environment, and food, but also develop new testing methods to evaluate them.
In recent years, we have been conducting joint research with local governments and companies to develop processing methods to reduce food loss and add value to food ingredients, to evaluate the pharmacokinetics of functional ingredients in foods, and to develop new testing methods for inflammation markers.

In recent years, we have been conducting joint research with local governments and companies to develop processing methods to reduce food loss and add value to food ingredients, to evaluate the pharmacokinetics of functional ingredients in foods, and to develop new testing methods for inflammation markers.

In order to revitalize the rcommunities, many municipalities with declining populations are making efforts to utilize the “history” and “culture” of the region for community development and tourism. However, first of all, it is necessary to academically clarify what are the characteristics of history and culture of the region, and to think of effective ways to use them. The center conducts measurement surveys of historical buildings and townscapes to study the value of cultural assets and methods of utilization, and reports and makes proposals to prefectures and municipalities. We are also promoting research on the utilization of cultural assets at an academic level with the aim of contributing to the local communities, we are training and educating human resources with the ability of “cultural thinking ability” which means to see and think about things from a new point of view with understanding of coexistance and interdependency included in the concept of culture based on the understanding of what is culture. Overseas, we are transferring this technology and training engineers in the Philippines, Bhutan, Fiji, etc., making use of our original restoration method based on surveys of traces.

We are developing soft actuators and soft sensors with flexibility and safety in life support devices and human frendly robot that act directly on humans. In addition, we are developing a pipe inspection robot that has a flexible structure by itself using a pneumatic actuator that can run on its own in complicated pipe and can be used in a wet narrow space. Then, in order to reduce the weight and labor of the peripheral equipment for driving the robot, we have devised a control valve with excellent cost performance and a new propulsion mechanism of the robot, and are considering making the inspection robot compact. Furthermore, we are developing local structure control technology by using burnishing as research on processing technology.

For various industrial fields including manufacturing and agriculture, I’m conducting researches on software that uses image recognition technology supports visual tasks or does them instead of people.
I’m also conducting research into software that assists in distinguishing colors and detecting specific color areas for various people including people with color vision deficiency, based on human color vision characteristics.

While using mechanical engineering (fluid dynamics, thermal engineering), applied physics (magneto science), and econometrics, I am conducting research on material informatics that integrates engineering and informatics. Practically, I analyze medical data using the methods of data mining and multivariate analysis. In the field of magneto science, I progress a technology called a “magnetic force booster” and succeeded in realizing a completely containerless protein crystal growth (see the photos). By the use of a magnetic levitation technique, I have also established in measuring the thermal properties of protein crystals.

My research focuses on applying artificial intelligence (AI) and natural language processing (NLP) technologies to educational support. I analyze the dialogue between teachers and students in elementary school classrooms and develop AI systems to assist teachers. Furthermore, I am researching techniques for generating advice for teachers using large language models (LLMs) and generating comments aimed at programming education. Additionally, I am developing dialogue models that consider the characteristics of the speaker, aiming for applications not only in the educational field but also in various industrial sectors, such as corporate human resource development.

My researches focus on evolution of terrestrial vertebrates and their paleozoogeography on the basis of skeletal remains or fossils (turtles, lizards, crocodiles, dinosaurs, frogs, carnivoran mammals in particular). To collect those vertebrate remain, we have conducted field excavations in Japan Main Islands, Ryukyu Archipelago, Indonesia, and the Gobi desert of Mongolia every year.

With the spread of Mobile Mapping System (a vehicle equipped with GNSS, laser scanners and cameras), huge point clouds are being accumulated rapidly. My study is to make effective use of this data in current road-related measurement system. And also I’m trying to display this as a high-speed 3DCG via the Internet.

Metaheuristic algorithms such as simulated annealing, iterated local search, genetic evolutionary algorithms are known to be effective optimization methods that can be used for various problems in engineering field. Our research interests are developments, improvements and analyses of high-performance evolutionary algorithms and metaheuristic algorithms based on local search for optimization problems such as Maximum Clique Problem, Graph Coloring Problem, Quadratic Assignment Problem, Facility Location Problem, Vehicle Routing Problem, Scheduling Problems, etc.

Electronic devices, for example LSI, and so on, are constructed of microscopic electronic circuits formed on semiconductor surfaces. Recently, nano-technology makes the sclae of the components of the microscopic electronic circuits nano-meter scale and makes the devices small, low-cost, and high-performance. We performe the theoretical study of the solid surfaces which handles fundamental properties of the nano-devices. Particularly, we forcus the syufy of the nano-scale structure as molecular gears or atomic chains on solid surfaces with the first principles calculations.

The application of superconductors makes it possible to develop superconducting motors with an unprecedentedly large power-to-gravity ratio. In our laboratory, we are developing superconducting motors with high energy density, such as jet engines, exceeding 10 kW/kg power-to-weight ratio by applying thin-film high-temperature superconducting wires to superconducting armatures.

Multifarious systems are devoloped for induction motor or interior permanent magnetic synchronous motor drives. The systems are implemented by a microcomputer which has 32bit floating point units and multi-function timer units. The methods for estimating the motor speed or weaken flux current have been proposed.

I am currently conducting researches on pedestrian flow modeling, simulation, and optimization. There are two reasons for investigating pedestrian flow. One is to solve the day-to-day problems of crowded public spaces, such as stations, shopping malls, pavements and many other places. The other is to optimize evacuation procedures from densely buildings and urban centers in case of an unpredicted event.

High temperature superconducting (HTS) wires have good characteristics such as perfect electric conductivity and large critical current density. Therefore the HTS wires are expected to contribute to development of small, lightweight and very efficient electric power apparatus. I am currently conducting researches on development of a small power source with an HTS transformer for supplying large current, a protection system for normal transitions in superconducting coils and a superconducting rotating gantry for heavy ion therapy.

The efficiency and performance of many industrial control systems depend on embedded servocontrollers. However, the presence of non-linear, time-varying unmeasurable disturbanses often lead to inability of the system to achieve low values of steady state error and may limit the closed loop bandwidth. Hence, the disturbance rejection is one of the most important and applicable design problem. I work in design and analysis of intelligent control systems including online identification of unknown system model parameters and rejection of unmeasurable disturbances. Another major research topic is development of intelligent UAV (drones) robots and their application in autonomous inspection of electrical energy transmission facilities, buildings etc..