Tohoku University. Research Profiles

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"F" Researcher - 8 Result(s)

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Design, fabrication and test of high performance miniaturized sensor and actuator systems

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Features
Micro and nano electro-mechanical systems (MEMS/NEMS) have completely changed human society in the past decades. Many devices that are taken for granted these days like smart phone, future car and drone would be unthinkable without them.
The integration of various new kinds of materials, such as metallic glass and nanostructures into micro technologies allows us to create devices with novel performance and characteristics; examples include acoustic sensors and actuators, thermoelectric generators and wafer level packages.
In collaboration with partners inside and outside Tohoku University, technologies are being developed that can be transferred to industry ranging from material integration and processes to packaging and reliability.

Targeted Application(s)/Industry
Wide collaboration in Microsystem technology is possible. We develop, implement and optimize processes, devices and systems until they are ready for use, keeping in mind reliability, yield and other important features for commercialization. We work with also with partners, such as Fraunhofer. Flexible interlinking of expertise and capacities with other research groups enables us to meet broad project requirements and create complex system solutions.


Advanced Institute for Materials Research
FROEMEL, Joerg, Associate Professor Doctor of Engineering

Converting Food Waste into Valuable Materials with Hot-Compressed Water Treatment

Features
Treatment with hot-compressed or subcritical water is an attractive process for converting food waste into valuable materials. Water is an environmentally acceptable solvent and is cost effective; thus, hot-compressed water has recently received attention as a medium for resource recovery from waste. We chose fish gelatin as a model of marine food waste (especially fish skin fraction), and we determined the optimum conditions for the degradation of fish gelatin with hot-compressed water between 160 and 240 °C at 2 MPa. These conditions were optimized in terms of maximizing the concentrations of specific degradation products, such as peptides, and ACE inhibitory.

Targeted Application(s)/Industry
The disposal of fish waste has become a serious problem in marine food industries because approximately half of the fish mass, including the skin, bones, entrails, and some meat. The feasibility of converting organic waste by hot-compressed water (subcritical water treatment) into useful resources has been demonstrated together with Industry.

Graduate School of Agricultural Science
FUJII, Tomoyuki, Professor Doctor of Agriculture

Advanced Technology on Flexible Liquid Crystal Displays

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Features
Flexible liquid crystal displays using thin plastic film substrates instead of glass substrates contained in current liquid crystal displays, are bendable, thin, lightweight, and do not crack, and generate new usage styles and human interfaces due to their excellent storability and portability. We have been researching the basic technologies for large-screen and high-quality flexible displays using functional organic materials including liquid crystal and polymer, so that anyone can enjoy fertile information services.

Targeted Applications / Industry
We hope to conduct collaborative research with a willing company in industry, for development and practical application of the advanced flexible display technologies.

Department of Electronic Engineering, Graduate School of Engineering
FUJIKAKE, Hideo, Professor Ph. D.

Oxide Electronics

Feature
Our research group investigates creation of functional oxides and their functionalities. We synthesize thin films by pulsed laser deposition and sputtering methods and bulk specimens, and develop their novel synthetic routes. Recently, we are studying electrically conducting rare earth oxides, transparent room temperature ferromagnetic semiconductors, and layered superconductors with monatomic Bi layer. We will develop our materials design by extending materials range and performing oxide heteroepitaxy.

Targeted Application(s)
Collaborative research in fields of oxide electronics with novel electric conducting oxides and oxide spintronics with ferromagnetic semiconductors and novel ferromagnetic oxides.

Advanced Institute for Materials Research
FUKUMRA, Tomoteru, Professor Doctor of Engineering

Aerodynamic noise reduction by flow control

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Graduate School of Engineering
FUKUNISHI, Yu, Professor Doctor of Engineering

High-Temperature Processes and Measurements of Materials

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Features
Fukuyama laboratory studies novel material processing based on chemical thermodynamics with high-temperature thermophysical property measurements. As examples, we are developing new crystal growth processes to bring a breakthrough in nitride-semiconductor devices, which are promising materials for next-generation optical devices applied in environmental, medical, bio and information technologies fields. Database of thermophysical properties of materials is needed for modeling heat and mass transports in materials processes.

Targeted Application(s)/Industry
A new thermophysical property measurement system is currently under development, which enables accurate measurements of heat capacity, thermal conductivity, emissivity, density and surface tension of high-temperature melts, utilizing electromagnetic levitation in a dc magnetic field.

Institute of Multidisciplinary Research for Advanced Materials
FUKUYAMA, Hiroyuki, Professor Doctor of Engineering

Advanced Control of Microstructure and Property of Structural Metallic Materials

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Features
Microstructure represents various kinds of heterogeneities in the metallic materials, i.e., grains, component phase, lattice defects and chemical inhomogeneity such as impurity/alloying elements. It can be modified through control of phase transformation/precipitation and deformation/recrystallization by adjusting compositions of materials and/or through processing routes (heat treatment, deformation). Such expertise in micro/nanostructure control is very important in production of current materials from viewpoints of energy saving and recycling in structural materials such as steels and titanium alloys.
We attempt to apply more advanced control of micro/nanostructures, such as atomic structures of crystalline interfaces, chemistory in an atomic scale (e.g., segregation) and so on. Fundamentals of microstructure formation (thermodynamics, kinetics, crystallography) are examined both theoretically and experimentally to clarify key factors for microstructure control. Another important aspect in our research is the improvement of mechanical property by microstructure manipulation.

Targeted Application(s)/Industry
Possibilities to establish new functions (e.g., superplasticity, shape memory/superelasticity) as well as superior mechanical properties (e.g., ultrahigh strength with high toughness/ductility) is also explored.

Institute for Materials Research
FURUHARA, Tadashi, Professor PhD

Yeast models of familial Alzheimer disease to screen for gamma-secretase inhibitors and modulators

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Features
Using the yeast transcriptional activator Gal4 system, we reconstituted the production of amyloid beta (Aβ), responsible for Alzheimer disease. Aβ production could be monitored by the positive growth in the selection media or by the reporter enzyme (β-Gal). Utilizing familial Alzheimer disease mutants, we established a system to screen for mutations and chemicals that modulate gamma secretase activity and reduce toxic Aβ42.

Targeted Application(s)/Industry
Our yeast system can be used to screen for chemicals, natural products, food ingredients, genes, and mutations that modulate γ-secretase activity and block Aβ42 production specifically. We hope to conduct collaboration research with a willing company for a practical application of this technology in industry.

Graduate school of Agricultural Science
FUTAI, Eugene, Associate Professor Doctor of Agriculture