ISHIWATA Shingo

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Associate Professor

Date of Birth

1958

Research Fields, Keywords

Nonlinear Physics, Soliton, Stochastic Resonance, Chemical Oscillation

Related SDGs




ORCID  https://orcid.org/0000-0002-1623-9388

The Best Research Achievement in Research Career 【 display / non-display

The Best Research Achievement in the last 5 years 【 display / non-display

  • 【Published Thesis】 A model of inner hair cell excitation based on interlocking of outer hair cell motility in the hearing  2021.03

    【Published Thesis】 A Model for Resolving the Intensity of Stick-Slip Vibration in the Surface Roughness Detection at a Finger Pad  2020.09

    【Published Thesis】 A model of sound wave detection to lead to inner hair cell excitation in the hearing  2020.03

    【Published Thesis】 Surface roughness detection based on stick-slip vibration of finger pad  2018.09

    【Published Thesis】 Development of a Tip-fabrication Circuit for Scanning Tunneling Microscopes in Exercise Class in the Undergraduate Course  2016.06

Graduating School 【 display / non-display

  •  
    -
    1984

    Shizuoka University   Faculty of Science   Department of Physics   Graduated

Graduate School 【 display / non-display

  •  
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    1990

    Yokohama National University  Graduate School, Division of Engineering  Division of Materials Science and Chemical Engineering  Doctor Course  Completed

Degree 【 display / non-display

  • Doctor of Engineering -  Yokohama National University

Campus Career 【 display / non-display

  • 2007.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2001.04
    -
    2007.03

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2000.07
    -
    2001.03

    Duty   Yokohama National UniversitySchool of Engineering   Associate Professor  

  • 1990.05
    -
    2000.06

    Duty   Yokohama National UniversitySchool of Engineering   Research Associate  

  • 2018.04
    -
    Now

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Mathematics, Physics, Electrical Engineering and Computer Science   Associate Professor  

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Academic Society Affiliations 【 display / non-display

  • 2015.07
     
     
     

    Acoustical Society of Japan

  • 2008.09
     
     
     

    The Robotics Society of Japan

  • 2003.09
     
     
     

    The Japanese Society for Mathematical Biology

  • 1986.03
     
     
     

    The Physical Society of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Mathematical physics/Fundamental condensed matter physics

 

Research Career 【 display / non-display

  • Development of Control Systems based on Stochastic Resonance

    Project Year:  -   

Papers 【 display / non-display

  • A model of inner hair cell excitation based on interlocking of outer hair cell motility in the hearing

    Shingo ISHIWATA, Koki HIGASHIHARA

    20201Spring Meeting Acoustical Society of Japan ( Acoustical Society of Japan )  2021 ( 春季 )   2021.03

    Joint Work

  • A Model for Resolving the Intensity of Stick-Slip Vibration in the Surface Roughness Detection at a Finger Pad

    FUKASAWA Shun, ISHIWATA Shingo, TODA Motofumi

    The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2020 ( 0 )   2020.09

    Joint Work

    DOI

  • A model of sound wave detection to lead to inner hair cell excitation in the hearing

    Shingo ISHIWATA, Yuki TAGO, Takumi IWAHARA

    2020 Spring Meeting Acoustical Society of Japan ( Acoustical Society of Japan )  2020 ( 春季 )   751 - 754   2020.03

    Joint Work

  • Surface roughness detection based on stick-slip vibration of finger pad

    YAMASHITA Hisashi, ISHIWATA Shingo, TODA Motofumi

    The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2018 ( 0 )   2018.09

    Joint Work

     View Summary

    <p>We propose a new model for tactile perception of the finger pad of a human based on the stick-slip vibration. It is known that a frequency of the stick-slip vibration to occur on the contact surface of two hard substances depends on the relative speed to each other, the load applied on the contact surface and the difference between the coefficients of static and kinetic friction. We suppose that similar dependence can be applied to the finger pad with a fingerprint. The validity of our model is shown from the both of an experiment and a numerical simulation. In the experiment, a rubber board with stripe and rectangular shapes is used instead of the fingerprint to get a relationship between the surface roughness and the relative speed, the load on the contact surface and the frequency of stick-slip vibration. As a result, it is shown that the stick-slip vibrations with the same frequency occur in a particular range of the relative speed V and the load W. In the numerical simulation, one-dimensional beam model corresponding to an elastic body with rectangular shapes is investigated in the case of acting only a horizontal shear force. It is shown that the frequency change of stick-slip vibration is remarkable in the range of a small value of <i>V/W</i>.</p>

    DOI CiNii

  • Development of a Tip-fabrication Circuit for Scanning Tunneling Microscopes in Exercise Class in the Undergraduate Course

    Shingo Ishiwata, Atsushi Suzuki, Ken-ichi Shudo

    JAPANESE JOURNAL OF APPLIED PHYSICS EDUCATION   40 ( 1 )   37 - 41   2016.06  [Refereed]

    Joint Work

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for challenging Exploratory Research

    Project Year: 2012.04  -  2014.03  Investigator(s): shingo Ishiwata

Presentations 【 display / non-display

  • A model of inner hair cell excitation based on interlocking of outer hair cell motility in the hearing

    ISHIWATA, Shingo, HIGASHIHARA, Koki

    2021 Spring Meeting Acoustical Society of Japan  2021.03.12   Acoustical Society of Japan

  • A Model for Resolving the Intensity of Stick-Slip Vibration in the Surface Roughness Detection at a Finger Pad

    Shun FUKASAWA, Shingo ISHIWATA, Motofumi TODA

    2020.09.16  

     View Summary

    We have proposed a new model for tactile perception of finger pads of human based on stick-slip vibrations. When humans rub the surface of an object with their finger, vibrations occur between the finger and the surface of the object. It is said that human detects these vibrations to feel various textures. In the previous study, we observed vibrations when rubbing a rubber with the stripe-like uneven shape instead of the finger on sandpapers. It was found that the frequency and the amplitude of vibration characterize the tactile information. In this study, we explore response characteristics of the Meissner corpuscle by numerical simulation. The FitzHugh-Nagumo equation is employed for the response of the secondary neuron connecting the Meissner corpuscle. As a result, it is found that a sigmoid feature of the Meissner corpuscle explains physiologic laboratory findings well. The neurons are in a noisy environment, according to the stochastic resonance, so that the noise may improve an ability to detect weak signals below the threshold.

  • A vibration model of basilar membrane in cochlea to realize audible frequency band of mammals

    Takumi Iwahara, Shingo Ishiwata

    2020.09.08  

  • A model of sound wave detection to lead to inner hair cell excitation in the hearing

    2020 Spring Meeting Acoustical Society of Japan  2020.03.17   Acoustical Society of Japan

  • A Model of Basilar Membrane Vibration in Hearing

    2017.09.24  

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