Tohoku University. Research Profiles

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"Q" Keywords - 19 Result(s)

Q

 q

[qi]

Integrative Health and Human Subtle Energy

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“Qi” is a fundamental concept in Chinese medicine. “Reiki” is a Japanese concept of Qi energy. Reiki is well known in Europe and America. For example, Brigham and Women’s Hospital (Harvard Medical School) has a certification system of Hospital Reiki Practitioner. We are thinking to use these subtle energies in the field of Integrative Health.

Targeted Application(s)/Industry

At first, technique to detect subtle energy through skin sensor can be offered. Then, cooperative work will start to develop detector of subtle energy. Our final purpose is to use subtle energy in daily life.

Music and Acoustical Medicine, Graduate School of Medicine
ICHIE, Masayoshi, Professor M.D., Ph.D.

[quantum dot solar cell]

Development of Innovative Green Nanodevices Using Damage-Free Processes

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We developed an entirely new concept of "bio-template ultimate process technology" and realized fabrication of uniform, size-controllable, defect-free, high-density and regularly-distributed quantum dot array on surface of arbitrary material. The quantum dot array can be applied to high efficiency and inexpensive quantum dot solar cells, high luminescence quantum dot lasers, high-speed graphene / germanium transistors, and so on, i.e., energy-generating, energy-storing, and low-energy-consumption devices.

Targeted Application(s)/Industry

We can accept collaborative researches on nanodevices such as quantum dot solar cells or lasers, low-energy-consumption devices such as graphene transistor and germanium transistor, and fundamental technologies such as plasma/beam processes, thin film deposition, doping, and surface treatment.

Green Nanotechnology Laboratory, Innovative Energy Research Center, Institute of Fluid Science
SAMUKAWA, Seiji, Professor Doctor of Engineering

[quantum effect]

Science of Next-Generation Higher-Order Functional Nano Metal Complex

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We focus on high-order functional magnetic, conductivity, and optical properties, and dielectrics, which will be used in the next-generation devices, on the basis of "quantum effects and novel non-linearity". We are synthesizing high-order functional nano hybrid materials.

Targeted Application(s)/Industry

We have conducted materials research to realize "quantum computers", "optical computers", "large-capacity high-speed optical communications", "high-density magnetic memories", and "single-molecule memories" in the near future, and we are looking forward to collaborating with electronics industries.

WPI Advanced Institute for Materials Research / Department of Chemistry Graduate School of Science
YAMASHITA, Masahiro, Professor

[quantum spin systems]

Neutron scattering study on macroscopic quantum phenomena

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In contrast to other scattering techniques, such as x-ray and electron diffractions, neutron scattering has the following advantages: 1) light atoms, such as H and Li, can be detected; 2) electron spins can be detected; 3) low energy excitations can be investigated. Using the neutron scattering technique, we search for macroscopic quantum phenomena in many-body electron systems, such as macroscopic singlet ground states in the quantum frustrated magnets and spin-fluctuation-mediated unconventional superconductors.

Targeted Application(s)/Industry

As noted above, neutron scattering can be used for investigating magnetic structure, spin dynamics, light atom positions in crystalline materials and their dynamics. Hence, this technique is very useful when those pieces of information are to be known.

Institute of Multidisciplinary Research for Advanced Materials
SATO, Taku J, Professor Doctor of Science

 Q

[Quake-Resistant Ground Materials]

Development of Recycling Technology for High-Water Content Sludge by Using Fiber Materials

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The recycling rate of construction muds and sludge is very low because the water content of these muds is very high and direct reuse of them is very difficult. Therefore, a new recycling technology for high-water content sludge has been developed in this laboratory. This technology is called "Fiber-Cement-Stabilized Soil Method", and it uses fiber materials and cement. The main feature of this method is to mix the fiber materials with the sludge, and the fiber materials included in the soil produce several geotechnical merits.

Targeted Application(s)/Industry

The modified soils produced by this method can be used as ground materials for reinforced embankment of the river bank and soil structures because they have several features such as high failure strength, high failure strain high durability for drying and wetting and high dynamic strength.

Graduate School of Environmental Studies
TAKAHASHI, Hiroshi, Professor Doctor of Engineering

[Quantification Method]

Development of a Novel Quantification Method for Diarrhetic Schell Fish Poisoning

Features

We have investigated isolation and structure determination of natural products and evaluated mode of their actions. We have especially focused on marine natural products causative for a food poisoning, diarrheic shellfish poisoning (DSP), which has spread worldwide and threatened regional fishery industry. Dinophysistoxin produced by the dinoflagellate Dinophysis spp. and okadaic acid, are thought to be responsible for DSP. Acute toxicity test using mice has been the primary method for detection of DSP in the fish market, though an alternative method to quantify DSP without sacrificing mice has been requested. We isolated OABP2, a novel okadaic acid binding protein, from the marine sponge Halichondria okadai and succeeded in expression of the recombinant OABP2 in E. coli, which eventually showed high affinity to the DSP toxins.

Targeted Application(s)/Industry

We are now working on visualization of OA by utilizing OABP2 in order to provide an easy and quick quantification method for DSP.

Graduate School of Agricultural Science
KONOKI, Keiichi, Associate Professor PhD

[Quantum Annealing]

Optimizing everything / Optimal Society

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Aiming at developing practical quantum optimization technology known as quantum annealing, we are working on exploring basic technologies that can overcome the limitations and applications in collaboration with multiple companies. The advantage of the method is that it can be used simply by formulating a cost function that draws the goal to be optimized once, but we are not limited to the original method. We extend it by considering a much easier problem, sequential optimization by learning, black box optimization, etc.. In particular, it is being applied to automated driving, logistics in factories, and evacuation guidance during disasters.

Targeted Application(s)/Industry

Applications to route search problems such as automatic driving of various vehicles, evacuation route guidance at the time of disaster, process scheduling and a large number of combination problems. We can provide a solution to combinatorial optimization in each industry. (Transportation / distribution, manufacturing, materials, drug discovery, etc.)

Graduate School of Information Sciences, Applied Information Sciences, Information and Applied Technology, Physical Fluctuomatics
OHZEKI, Masayuki, Associate Professor Doctor of Science

[Quantum communication]

Development of Entangled Photon Sources

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The quantum information and communication technology (QICT) is expected to overcome the difficulties that classical information technology is confronted with. Quantum entanglement carried by photons is one of the most fundamental resources in QICT. We have been developing efficient, high-quality entangled photon sources utilizing semiconductor materials and quasi-phase-matched optical nonlinear devices, with a number of patents awarded.

Targeted Application(s)/Industry

We hope to conduct collaborative research with a willing company for a practical application of this technology.

Research Institute of Electrical Communication
EDAMATSU, Keiichi, Professor Doctor of Science

[Quantum Computation]

Optimizing everything / Optimal Society

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Aiming at developing practical quantum optimization technology known as quantum annealing, we are working on exploring basic technologies that can overcome the limitations and applications in collaboration with multiple companies. The advantage of the method is that it can be used simply by formulating a cost function that draws the goal to be optimized once, but we are not limited to the original method. We extend it by considering a much easier problem, sequential optimization by learning, black box optimization, etc.. In particular, it is being applied to automated driving, logistics in factories, and evacuation guidance during disasters.

Targeted Application(s)/Industry

Applications to route search problems such as automatic driving of various vehicles, evacuation route guidance at the time of disaster, process scheduling and a large number of combination problems. We can provide a solution to combinatorial optimization in each industry. (Transportation / distribution, manufacturing, materials, drug discovery, etc.)

Graduate School of Information Sciences, Applied Information Sciences, Information and Applied Technology, Physical Fluctuomatics
OHZEKI, Masayuki, Associate Professor Doctor of Science

[Quantum computing]

Quantum devices utilizing nanostructures

Features

1) We investigate quantum effects in nanostructures and develop quantum devices like quantum bits and sensors utilizing solid-state nanostructures.
2) We have techniques and skills on electric measurement and control of quantum states and data informatics. We are open to new collaborations.

Targeted Application(s)/Industry

Research Institute of Electrical Communication
OTSUKA, Tomohiro, Associate Professor Doctor of Science

[Quantum cryptography]

Development of Entangled Photon Sources

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The quantum information and communication technology (QICT) is expected to overcome the difficulties that classical information technology is confronted with. Quantum entanglement carried by photons is one of the most fundamental resources in QICT. We have been developing efficient, high-quality entangled photon sources utilizing semiconductor materials and quasi-phase-matched optical nonlinear devices, with a number of patents awarded.

Targeted Application(s)/Industry

We hope to conduct collaborative research with a willing company for a practical application of this technology.

Research Institute of Electrical Communication
EDAMATSU, Keiichi, Professor Doctor of Science

[Quantum device]

Quantum devices utilizing nanostructures

Features

1) We investigate quantum effects in nanostructures and develop quantum devices like quantum bits and sensors utilizing solid-state nanostructures.
2) We have techniques and skills on electric measurement and control of quantum states and data informatics. We are open to new collaborations.

Targeted Application(s)/Industry

Research Institute of Electrical Communication
OTSUKA, Tomohiro, Associate Professor Doctor of Science

[Quantum dots]

Developing energy creation and saving materials

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Most innovations have been triggered by advent of new materials. We focus on to explore new inorganic materials and their synthesis routes on the basis of our knowledge about the material design and various materials processing technologies. We develop proton conducting phosphate glasses working at intermediate temperatures and narrow gap oxide semiconductors applicable in visible and NIR regions, simple and safe synthesis routes to cadmium-free quantum dot phosphors and colloidal indium arsenide quantum dots for solar cells. Thin-film solar cells, fuel cells and light-emitting devices using those materials are also developing.

Targeted Application(s)/Industry

We focus on oxide semiconductors, proton conducting electrolytes and electrodes, quantum dots and nanocrystals in order to apply them in solar cells, fuel cells, light-emitting devices and displays. But, applicable area of our technologies is not limited in those applications.

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
OMATA, Takahisa, Professor Doctor of Engineering

[Quantum electronics]

Quantum devices utilizing nanostructures

Features

1) We investigate quantum effects in nanostructures and develop quantum devices like quantum bits and sensors utilizing solid-state nanostructures.
2) We have techniques and skills on electric measurement and control of quantum states and data informatics. We are open to new collaborations.

Targeted Application(s)/Industry

Research Institute of Electrical Communication
OTSUKA, Tomohiro, Associate Professor Doctor of Science

[Quantum information]

Development of Entangled Photon Sources

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Features

The quantum information and communication technology (QICT) is expected to overcome the difficulties that classical information technology is confronted with. Quantum entanglement carried by photons is one of the most fundamental resources in QICT. We have been developing efficient, high-quality entangled photon sources utilizing semiconductor materials and quasi-phase-matched optical nonlinear devices, with a number of patents awarded.

Targeted Application(s)/Industry

We hope to conduct collaborative research with a willing company for a practical application of this technology.

Research Institute of Electrical Communication
EDAMATSU, Keiichi, Professor Doctor of Science

[Quantum information processing]

Quantum devices utilizing nanostructures

Features

1) We investigate quantum effects in nanostructures and develop quantum devices like quantum bits and sensors utilizing solid-state nanostructures.
2) We have techniques and skills on electric measurement and control of quantum states and data informatics. We are open to new collaborations.

Targeted Application(s)/Industry

Research Institute of Electrical Communication
OTSUKA, Tomohiro, Associate Professor Doctor of Science

[Quantum Mechanics]

Optimizing everything / Optimal Society

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Features

Aiming at developing practical quantum optimization technology known as quantum annealing, we are working on exploring basic technologies that can overcome the limitations and applications in collaboration with multiple companies. The advantage of the method is that it can be used simply by formulating a cost function that draws the goal to be optimized once, but we are not limited to the original method. We extend it by considering a much easier problem, sequential optimization by learning, black box optimization, etc.. In particular, it is being applied to automated driving, logistics in factories, and evacuation guidance during disasters.

Targeted Application(s)/Industry

Applications to route search problems such as automatic driving of various vehicles, evacuation route guidance at the time of disaster, process scheduling and a large number of combination problems. We can provide a solution to combinatorial optimization in each industry. (Transportation / distribution, manufacturing, materials, drug discovery, etc.)

Graduate School of Information Sciences, Applied Information Sciences, Information and Applied Technology, Physical Fluctuomatics
OHZEKI, Masayuki, Associate Professor Doctor of Science

[Quantum sensing]

Quantum devices utilizing nanostructures

Features

1) We investigate quantum effects in nanostructures and develop quantum devices like quantum bits and sensors utilizing solid-state nanostructures.
2) We have techniques and skills on electric measurement and control of quantum states and data informatics. We are open to new collaborations.

Targeted Application(s)/Industry

Research Institute of Electrical Communication
OTSUKA, Tomohiro, Associate Professor Doctor of Science

[Quantum structure]

Transport Control of Semiconductor Quantum Structures and Highly Sensitive NMR

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Highly-sensitive NMR technique has been developed by manipulation polarization of nuclear spins via control of transport characteristics in GaAs and InSb quantum structures. This highly-sensitive NMR can be applied to two-dimensional and nanostructures. Furthermore, ideal gate controllability has been demonstrated in InSb quantum structures with Al2 O3 dielectrics. More importantly, the concept of generalized coherence time was introduced, where noise characteristics felt by nuclear spins can be measured including their frequency dependence. This concept will bring about a change in all nuclear-spin related measurements.

Targeted Application(s)/Industry

Next generation InSb devices based on good gate controllability. Various nuclear-spin based measurements and NMR utilizing the concept of generalized coherence time. Highly-sensitive NMR is now important for fundamental physics studies. In the future, it will contribute to quantum information processing.

Graduate School of Science
HIRAYAMA, Yoshiro, Professor Doctor of Engineering