"S" Keywords - 158 Result(s)

 S

[seed]

Improvement of Seed Production by Using Reproductive Trait in Crops, Especially, Rice and Cruciferous Crops

NEXT
PREV
概要

The recent spate of extreme weather events is threatening to reduce crop seed and fruit production. We have identified a catalog of genes that respond under low and high temperature stress, and will construct a system that enables production under temperature stress through genome editing and other methods.

従来技術との比較

In addition to conventionally used genetic recombination methods, genome editing technology has made it possible to modify genes that can be used for practical purposes.

特徴・独自性
  • Crops are important for food, environment recovery, energy production, and amenity activity for human being. For improvement of crop seed production, the breeding of crops having environmental stress, is important. Especially the developmental stage from pollination to fertilization is quite weak for these environmental stresses. Thus, by breeding of reproductive trait, we will establish the high productivity and quality of crop seeds. From our research, we found several stress-tolerant genes. We already started the research by both basic and applied level.
実用化イメージ

For application, we evaluated by taking prize for application in 2001. And our basic data has been published in international Journal, "Nature" and "Science". If anyone is interested in these genes, we hope to conduct to collaborative research for establishing the useful breeding lines.

Researchers

Graduate School of Life Sciences

Masao Watanabe

[Seismically Isolated Structures]

[Seizure]

newDevelopment of a Numerical Prediction System for Sliding Part Wear and Seizure Occurrence Portions

NEXT
PREV
概要

Focusing on the lubricant film flow with phase change between the engine piston pin and connecting rod small end, we developed a new multiphase fluid-structure coupled analysis method that takes into account elastic deformation of the structure and flow path changes and developed a simulation prediction method for tribological properties under high load conditions. The simulation prediction method for tribological properties under high load conditions has been created. As a result, we succeeded in simulation prediction of the wear/seizure generating areas in sliding parts. We discovered that the peculiar deformation behavior of the components is the cause of wear/seizure.

従来技術との比較

It has been thought that computational prediction is impossible to verify the wear and seizure locations in fluid lubrication. Still, this study succeeded in the simulation prediction of wear and seizure locations in sliding parts.

特徴・独自性
  • Numerical prediction of the wear and seizure locations in the sliding parts of engine piston pins was successfully performed.
  • The bow-like deformation of the piston pin was identified as the cause of mechanical contact and seizure at the connecting rod edge.
  • A three-dimensional multiphase fluid-structure coupled analysis method has been successfully developed, considering the piston pin's elastic deformation and connecting rod and thin-film cavitation1 lubrication with unsteady flow path changes.
実用化イメージ

This research method applies to automotive engines and all sliding component elements using fluid lubrication. It contributes to damage prediction and the development of safety guidelines for transportation and industrial machinery components, enabling the optimal design of components.

Researchers

Institute of Fluid Science

Jun Ishimoto

[self]

Brain Mechanism Realizing Human Mind

NEXT
PREV
特徴・独自性
  • I am investigating the brain mechanism of human mind. Specifically, my target is the internal schema that dissociate the self and other in the following three layers: physical, interpersonal, and social domains.
実用化イメージ

  • Improvement of the interface of the system
  • Clarifying the neuro-cognitive mechanism of the effect on the customer
  • New concept of the customer satisfaction

Researchers

Institute of Development, Aging and Cancer

Motoaki Sugiura

[self-driving car]

Coexistence of humans and mobile robots

NEXT
PREV
特徴・独自性
  • A variety of new mobilities coexisting with humans, such as service robots, self-driving cars, and personal mobility, are expected to be deployed. In this laboratory, we are studying technologies for the safe and smooth coexistence of these various mobile vehicles with humans.
  • In particular, we are approaching the problem from the aspect of predicting the movement of humans by considering their characteristics such as visual attention.
実用化イメージ

The targeted application is service robots, personal mobility, self-driving cars, and other mobile vehicles that will be expected to coexist with humans, as well as the design of transportation environments for these vehicles to safely coexist with humans.

Researchers

Graduate School of Engineering

Yusuke Tamura

[self-healing concrete]

[Semiconductor]

Hands-On Access Fabrication Facility –Open Facility for MEMS and Semiconductor Prototyping–

NEXT
PREV
NEXT
PREV
概要

We offer shared facility for the development of semiconductor prototypes equipped with 4-inch, 6-inch and some 8-inch wafer fabrication tools available on an hourly basis. Know-how accumulated at Tohoku University is available, and staff provide maximum support for prototyping. The service is performed at the 1,200 m2 Super Clean Room on the second floor of the Junichi Nishizawa Memorial Research Centre at Tohoku University. For information on equipment and fees, see our website.

従来技術との比較

More than 10 experienced technical staff assist customer's usages. Standard process conditions for each process, such as etching and deposition, are provided. allowing customers to start prototyping immediately. Various materials other than silicon can also be supported.

特徴・独自性
  • We support the development of devices and semiconductor materials such as MEMS, optical elements and RF components.
  • Technical consultation on devices and processes before and during prototyping is also available.
  • A
  • 'Prototype lab' for device packaging is also available.
  • The museums where you can learn about the history of semiconductors, measuring instruments and sensors are open.
  • As part of Technology Co-creation for Semiconductor of Tohoku University, we promote R&D of semiconductors and the development of human resources.
  • On-demand semiconductor human resource development programs for students and engineers are available.
  • As a member of the MEXT's Advanced Research Infrastructure for Materials (ARIM) program, we are involved in sharing facility and data.
実用化イメージ

More than 310 companies have used our shared facility since its launch in 2010, not only from device manufacturers such as MEMS, but also from manufacturers of materials, mechanical components and equipment. To date, we have successfully supported the commercialization of about 10 devices.

Researchers

Micro System Integration Center

Kentaro Totsu

Electronic properties of nanostructures and nanodevices

特徴・独自性
  • 1) We investigate interesting properties of nanostructures and develop materials and devices utilizing nanostructures.
  • 2) We have techniques and skills on low-noise electric measurements, cryogenics, nanofabrication, and data informatics. We are open to new collaborations.
実用化イメージ

Researchers

Advanced Institute for Materials Research

Tomohiro Otsuka

[Semiconductor Integrated Circuit]

Development of Biomedical Micro/Nano Integrated System Using LSI Technology

NEXT
PREV
特徴・独自性
  • Semiconductor neural engineering is a discipline that uses semiconductor process/device/circuit technologies to further understand properties of neural systems and to create novel fusion systems of living body and machine.
実用化イメージ

One of the goals in this laboratory is to establish semiconductor neural engineering and develop biomedical micro/nano integrated systems.
Another goal is to educate the next generation of leaders in biomedical engineering through research including:
1. Intelligent Si neural probe and biomedical signal processing LSI
2. Fully-implantable retinal prosthesis system
3. Bio/nano technology and novel Bio-FET sensor
4. 3-dimensional integration technology and analog/digital LSI design

Researchers

Graduate School of Biomedical Engineering

Tetsu Tanaka

[semiconductor lasers (LD)]

R&D in Semiconductor Materials and their Device Applications Bringing System Evolutions

NEXT
PREV
特徴・独自性
  • 1. Development of Distributed Feedback (DFB) Laser Diodes (LD) widely used in optical communications systems realizing a highly information-based society. This LD increases the transmission capacity by 25,000 times per fiber which means the bit rate of 10Tb/s.
  • 2. Nitride semiconductors famous for blue light emitting diodes.
  • (a) Proposal of InGaAlN system considering device applications in 1989
  • (b) Success in growth of single crystalline InGaN by metalorganic vapor phase epitaxy (MOVPE) in 1989
  • (c) Prediction of band-gap energy (Eg) of InN much smaller than the values reported in 1980s and its   experimental confirmation in 2002
  • (d) Observation of photoluminescence from InGaN in 1991
  • (e) Prediction of phase separation in InGaAlN in 1997
実用化イメージ

DFB-LD: Fabrication of periodic structure with submicron scale, Epitaxial growth of semiconductor films on the substrate with fine structures, LD fabrication process, device evaluation, and device simulation

Nitride Semiconductors: MOVPE growth, N-polar growth, Evaluation of semiconductor materials, Fabrication of light-emitting devices, solar cells, and high-power transistors

Researchers

New Industry Creation Hatchery Center

Takashi Matsuoka

[Semiconductor processing]

Development of Advanced Device and Process Technologies and New Image Sensors

NEXT
PREV
特徴・独自性
  • Toward the ultimate performances of image sensors, advanced research activities are being conducted that cover a wide range of technology fields from cleanroom infrastructure, materials, process equipment, process, device, circuit, assembly, signal processing, measurement/evaluation and reliability. Following technologies have been successfully commercialized:
  • A fast and accurate measurement technology of electrical characteristics for over 1 million transistors
  • A wide dynamic range CMOS image sensor technology capturing images over five decade brightness ranges
  • An ultra-fast CMOS image sensor technology with 10 million frames/sec
実用化イメージ

Followings are available for industry collaborators:
A. 200mm-diameter-wafer silicon device fabrication utilizing the ultra-clean facility including wafer mutual fabrication processing between device manufacturers.
B. Process technology development and various kinds of analyses.
C. Development of new image sensors.

Researchers

New Industry Creation Hatchery Center

Shigetoshi Sugawa

[Sensor]

Hands-On Access Fabrication Facility –Open Facility for MEMS and Semiconductor Prototyping–

NEXT
PREV
NEXT
PREV
概要

We offer shared facility for the development of semiconductor prototypes equipped with 4-inch, 6-inch and some 8-inch wafer fabrication tools available on an hourly basis. Know-how accumulated at Tohoku University is available, and staff provide maximum support for prototyping. The service is performed at the 1,200 m2 Super Clean Room on the second floor of the Junichi Nishizawa Memorial Research Centre at Tohoku University. For information on equipment and fees, see our website.

従来技術との比較

More than 10 experienced technical staff assist customer's usages. Standard process conditions for each process, such as etching and deposition, are provided. allowing customers to start prototyping immediately. Various materials other than silicon can also be supported.

特徴・独自性
  • We support the development of devices and semiconductor materials such as MEMS, optical elements and RF components.
  • Technical consultation on devices and processes before and during prototyping is also available.
  • A
  • 'Prototype lab' for device packaging is also available.
  • The museums where you can learn about the history of semiconductors, measuring instruments and sensors are open.
  • As part of Technology Co-creation for Semiconductor of Tohoku University, we promote R&D of semiconductors and the development of human resources.
  • On-demand semiconductor human resource development programs for students and engineers are available.
  • As a member of the MEXT's Advanced Research Infrastructure for Materials (ARIM) program, we are involved in sharing facility and data.
実用化イメージ

More than 310 companies have used our shared facility since its launch in 2010, not only from device manufacturers such as MEMS, but also from manufacturers of materials, mechanical components and equipment. To date, we have successfully supported the commercialization of about 10 devices.

Researchers

Micro System Integration Center

Kentaro Totsu

Development of Passive Millimeter-wave Imaging Device for Practical Applications

NEXT
PREV
特徴・独自性
  • Millimeter wave (MM-wave) which is one of the electromagnetic wave transparent the clothes, the fire and the wall etc. and all natural materials including objects in clothes always radiate the electromagnetic wave as the thermal noise. Using these characteristics of MM-wave, imaging of concealed objects in clothes can be accomplished in a noninvasive and noncontact manner. This technique is called Passive Millimeter Wave (PMMW) Imaging technique and we have developed a PMMW imaging device for security applications.
  • The wave length of MM-wave frequency range is from 1 mm to 10 mm and the spatial resolution of images in MM-wave range is low compared with sub-millimeter (terahertz) range or Infra-Red range, however, higher transmittance through clothes can be obtained compared with higher frequency range. Furthermore, low noise amplifier (LNA) exists which could be the advantage of MM-wave compared with higher frequency ranges.
  • Now the device was developed for the purpose of keeping safe and secure aircrafts and ships etc., we hope to conduct collaborative research with a willing company for a practical application of this technology in industrial fields such as the fire rescue, the police equipment and the medical devices.
実用化イメージ

Researchers

Graduate School of Engineering

Hiroyasu Sato

MEMS/Micromachines and Microfabrication Technology

NEXT
PREV
特徴・独自性
  • We are studying MEMS (Micro Electro Mechanical Systems) and related technologies, which are typically used for the input/output of information/communication devices, the safety of automobiles etc. Our representative topics include integrated sensors, piezoelectric devices, RF MEMS, micro energy devices and wafer-level packages. Our facilities are open-accessible and well equipped with a lot of tools for lithography, dry/wet etching, thin film deposition, wafer bonding, device mounting and evaluations, which can be operated by each researcher. Using these tools, a variety of MEMS are being prototyped. Also, new microfabrication tools are being developed by ourselves.
実用化イメージ

We are collaborating with many companies, from which visiting researchers are dispatched to our laboratory. We also accept companies which want to just use specific tools in our facilities. Consultation is always welcome.

Researchers

Graduate School of Engineering

Shuji Tanaka

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

NEXT
PREV
特徴・独自性
  • 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.
実用化イメージ

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.

Researchers

Micro System Integration Center

Froemel Joerg Eckhardt

Lymph node metastasis prediction and treatment evaluation system

NEXT
PREV
特徴・独自性
  • 1. pressure sensor (needle, optical fiber, etc.) can be inserted into the lymph node to evaluate the risk of lymph node metastasis and treatment.
  • 2. domestic patent obtained
実用化イメージ

Joint research with a medical device manufacturer to develop a diagnosis and treatment system for lymph node metastasis

Researchers

Graduate School of Biomedical Engineering

Tetsuya KODAMA

[Service Engineering]

Data Analytics for Creation of Social Values

NEXT
PREV
特徴・独自性
  • My research field is a data analytics for creation of social values by data science approaches. In modern society, we can observe various data sets about our daily life, business or community. I aim to create new services for it using such data set and methods of Bayesian modeling, data mining or machine learning.
実用化イメージ

Researchers

Graduate School of Economics and Management

Tsukasa Ishigaki

[Shape memory alloy]

Novel Cu-Based Shape Memory Alloy with High Ductility

NEXT
PREV
特徴・独自性
  • Recently, we have developed a novel Cu-Al-Mn based shape memory alloy with high SM properties and with a ductility twice higher than that in Nitinol . Furthermore, this novel SM alloy needs no die for the shape setting and is fabricated with relatively low cost. Very recently, we have successfully developed a device to cure ingrown toenail by using this SM alloy.
実用化イメージ

Very recently, we established a fabrication process for the Cu-Al-Mn sheet, wire and bar with 0.1 - 20mm in thickness or diameter. We hope to conduct collaborative research with a willing company for a practical application with this new SM alloy.

Researchers

Graduate School of Engineering

Ryosuke Kainuma

Novel CoCr-based superelastic metallic biomaterial with low Young's modulus

NEXT
PREV
特徴・独自性
  • General metallic biomaterials, such as stainless steels and conventional CoCr alloys, show a high Young's modulus ten times higher than that of human bones. This is an unfavored feature because it causes the so-called "stress shielding effect" when they are used as implants. β-type Ti alloys have a relatively lower Young's modulus, but they come with a compromise of low wear resistance. The current novel CoCr-based alloys are a breakthrough; they exhibit both a low Young's modulus similar to human bones and a high wear and corrosion resistance. Moreover, they exhibit superelasticity with a huge recoverable strain over 17%, also showing promise as shape memory alloys.
実用化イメージ

It is the first time that a low Young's modulus, a high corrosion and wear resistance, and a superior superelastic behavior are simultaneously obtained in a single material. The current novel CoCr-based alloys are promising for biomedical applications such as total hip or knee joint replacements, bone plates, spinal fixation devices, and vascular stents.

Researchers

Graduate School of Engineering

Xiao Xu

[Si]

A novel crystal growth via controlling an energy relationship between crystal and melt with applying an electric field

NEXT
PREV
特徴・独自性
  • This lab is concerned with the novel approach mainly for the growth from melt by studying the relationship between the interface dynamics during growth and properties of grown crystals. Special interests lie in the growth of new crystals via the imposition of an interface-electric field. Nano-scaled control of crystal growth is executed in an electric double layer of ~nm thickness that is induced by applying an external electric field on the growth interface. Some of our growth results brought by applying an electric field are;
  • 1. Growth of Langasite-type crystals for the pressure sensor at high temperature by manipulating the energy relationship between crystal and melt.
  • 2. Easy nucleation of protein crystals that are normally hard to crystallize.
  • 3. Formation of Si crystals with desired structure by manipulating the interface instability of Si.
  • Crystals developed this way will widen an opportunity to collaborate with industries in the field of the piezoelectric, magnetic, optic and other fields related to the highly-networked information society.
実用化イメージ

Researchers

New Industry Creation Hatchery Center

Satoshi Uda