"D" Theme - 66 Result(s)

 D

Development of the Nickel-Free Dental Magnetic Attachment Using the Magnetic Shielding Material which Lost its Magnetism by Nitrogen-Solid Solution

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特徴・独自性
  • In the dental magnetic attachments which retain dentures, superstructures of dental implants, and so on, the non-magnetic stainless steel containing nickel is used in order to reinforce their retentive force by a magnetic circuit. The surface layer of magnetic stainless steel which loses its magnetism by nitrogen-solid solution obtained from heating in nitrogen gas at high temperature, enable to form a magnetic circuit, which does not contain nickel at all, and to reduce its components and manufacturing processes. The method using the nitrogen-solid solution in this study is warrantable to manufacture the nickel-free dental magnetic attachment with high safety.
実用化イメージ

The nickel-free magnetic attachment realizes a retainer with higher safety, and can expect the application to medical and dental care for clinical uses, such as not only a denture but a dental implant, an epithese, and so on with easy desorption.

Researchers

Graduate School of Dentistry

Yukyo Takada

Development of Wearable Motion Measurement System for Motor Rehabilitation and Healthcare

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特徴・独自性
  • In order to realize wealthy and vibrant local communities, it is desired that people in the community are healthy. However, the amount of the daily activity decreases as they get older, which increases the risks of the fall by weakened lower limb muscles and of the cerebrovascular disease, and so on. Therefore, for the elderly people, there is increased need of the walking training and the movement assistance in daily life, and of the rehabilitation aid.
  • In this study, focusing on the motor function of the lower limbs that is important for independent activities of daily living and that relates to the health maintenance, development of assistive technologies for decreased gait ability or for dysfunction of lower limbs are performed based on the technologies of electronics and signal processing. Especially, the wearable sensor system using gyroscopes and accelerometers are developed to measure kinetic information, and then the evaluation system for the gait ability and the lower limbs motor function is developed in this study.
実用化イメージ

The goal of this study is to realize simple and convenient measurement and accumulation of various information of gait, to visualize the obtained data for determination of training effect and evaluation of motor function, and to provide appropriate training program for each subject.

Researchers

Graduate School of Biomedical Engineering

Takashi Watanabe

DIFFERENTIATION INDUCING METHOD ENABLING TUMORIGENESIS OF IPS CELLS TO BE SUPPRESSED

特徴・独自性
  • The present invention relates to a technique for differentiating iPS cells into target differentiated cells while suppressing tumorigenesis in the iPS cells. In use of a statin and a differentiation inducer, iPS cells are differentiated into target differentiated cells, whereby iPS cells can be differentiated into differentiated cells in which tumorigenesis is suppressed.
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Researchers

Graduate School of Dentistry

Hiroshi Egusa

Digitizing Democracy in Japan

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特徴・独自性
  • The global pandemic is forcing democracies around the world to hold non-contact elections. Internet voting is considered a viable option, but there is little chance of introducing it in Japan. Similarly, while there is an urgent need to implement online parliament to reduce the risk of infection, only a minority of parliaments are willing to do so. In this study, we will identify the factors that hinder the digitalization of democracy and pursue the possibility of social implementation in Japan.
実用化イメージ

This study can contribute to election commission practices and vendor voting terminal development.

Researchers

Graduate School of Information Sciences

KAWAMURA Kazunori

Discovery of diagnostic markers by metabolomics

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特徴・独自性
  • Losing cholesterol homeostasis with inborn errors of metabolisms or hepatobiliary diseases makes a change to in vivo cholesterol metabolism profile and causes the emergence of increased metabolites as conjugates in blood and urine. We have developed an LC/ESI-MS/MS method using fragment patterns characteristic of conjugation types for group-specific and comprehensive analysis of conjugated cholesterol metabolites. This method can contribute for an efficient discovery of diagnostic marker candidates toward various diseases.
実用化イメージ

After availability verification of candidates as diagnostic markers, it will be required screening tests. We have potential to collaborate with company for development of bioassay systems using antibodies or enzymes.

Researchers

Tohoku University Hospital

Nariyasu Mano

Dry-Contact Ultrasonic Technique

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特徴・独自性
  • A new dry-contact technique for transduction of broadband, high-frequency ultrasound via a solid layer inserted between water and the sample, whereat the pressure of about 0.1 MPa is applied at the layer/sample interface by evacuating air between them, has been developed. Based on the technique, acoustic imaging of an electronic package is realized under the dry environment (Fig. 1). Typically, the polymer films are used as the intermediate layer for water protection of the sample, and by utilizing the acoustic resonance phenomenon among water, film and the sample, higher quality acoustic image of the testing sample than that for the water immersion case can be recorded without getting the sample wet (Fig. 2). Moreover, thin materials, e.g., polymer film (Fig. 3), etc. can be characterized by analyzing the acoustic resonance phenomenon among the three media. We hope to conduct collaborative research with a willing company for a practical application of this technology in industry.
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Researchers

Graduate School of Engineering Department of Finemechanics

TOHMYOH Hironori