OKAZAKI Shinji

Affiliation

Faculty of Engineering, Division of Materials Science and Chemical Engineering

Job Title

Professor

Date of Birth

1969

Research Fields, Keywords

sensor engineering, corrosion engineering

Mail Address

E-mail address

Related SDGs




ORCID  https://orcid.org/0000-0001-5418-9652

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

  • 【Published Thesis】 Distributed hydrogen determination with fiber-optic sensor  2005

    【Published Thesis】 Development of an all-solid-state residual chlorine sensor for tap water quality monitoring  2017.03

    【Published Thesis】 Relationship between degradation characteristics of organic coatingon internal bottom plate of oil storage tank and constant-phase element parameter values  2015.10

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

  • 【Published Thesis】 Pulsed laser deposition of Pt-WO3 of Hydrogen sensors under atmospheric conditions  2020.12

    【Published Thesis】 Atmospheric Corrosion Sensor Based on Strain Measurement with Active-Dummy Fiber Bragg Grating Sensors  2020.08

    【Published Thesis】 Characteristics of Highly Sensitive Hydrogen Sensor Based on Pt-WO3/Si Microring Resonator  2020.01

    【Published Thesis】 Effect of jumping current on corrosion behaviors of stainless-steel and steel water pipeline separated by insulating joint  2018.10

    【Published Thesis】 A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film  2018.02

Education 【 display / non-display

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    1993

    Yokohama National University   materials science and chemical engineering   Master Course   Completed

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    1991

    Yokohama National University   materials science and chemical engineering

Degree 【 display / non-display

  • Doctor of Engineering - Yokohama National University

  • Master of Engineering - Yokohama National University

Campus Career 【 display / non-display

  • 2015.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Professor  

  • 2007.4
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    2015.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Associate Professor  

  • 2006.2
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    2007.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Associate Professor  

  • 2001.4
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    2006.1

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Research Assistant  

  • 1997.3
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    2001.3

    Duty   Yokohama National UniversitySchool of Engineering   Research Assistant  

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Academic Society Affiliations 【 display / non-display

  • 2012
     
     
     

    日本高圧力技術協会

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    電気化学会

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    安全工学協会

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    電気学会

Research Areas 【 display / non-display

  • Nanotechnology/Materials / Fundamental physical chemistry

  • Humanities & Social Sciences / Science education

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Social systems engineering

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Safety engineering

  • Nanotechnology/Materials / Analytical chemistry

 

Research Career 【 display / non-display

  • Application of corrosion reaction to electrochemical sensors and chemical reactions

    Project Year:

  • development of an ozone sensor using catalytic-combustion gas sensors

    Project Year:

  • Development of gas sensors using fiber-optic evanescent-wave

    Project Year:

Books 【 display / non-display

  • 安全工学便覧(第4版)

    岡崎慎司ほか( Role: Contributor)

    安全工学会  ( ISBN:978-4-339-07821-3

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    Language:Japanese Book type:Scholarly book

  • 電気化学・インピーダンス測定のデータ解析手法と事例集

    岡崎 慎司 外( Role: Contributor ,  8章4節を分担執筆)

    技術情報協会  ( ISBN:978-4-86104-730-5

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    Language:Japanese Book type:Scholarly book

Papers 【 display / non-display

  • Investigation of Accelerated Degradation Methods to Cause Blisters for Non-Defective Vinyl Ester Resin Glass Flake Organic Coatings

    Tokutake Koya, Okazaki Shinji, Kodama Shintaro

    COATINGS   12 ( 1 )   76   2022.1  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Corrosion Countermeasure for Building Equipment in Water Piping System(Part 1)Corrosion Prevention Nature for Carbon Steel in Tap Waters Treated with Anion Exchange Resin

    Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan   ( 297 )   57 - 65   2021.12  [Reviewed]

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Joint Work  

  • Potentiometric Free Chlorine Detection without Using Conventional Reference Electrodes

    Okazaki Shinji, Yoshida Kazuyuki, Kodera Natsumi, Ujiie Shuntaroh, Nishimatsu Yukino, Tanaka Yoshit … Show more authors

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   168 ( 11 )   117516   2021.11  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Electrochemical Society   Joint Work  

  • Corrosion of Carbon Steel in Tap Water (Ⅱ) : -Growth of Rusted Area on Metal Surface in Relation to Corrosion Potential-

    Nakamura Yuji, Matsukawa Yasuki, Okazaki Shinji, Asakura Shukuji

    Zairyo-to-Kankyo   70 ( 9 )   295 - 301   2021.9  [Reviewed]

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Corrosion Engineering   Joint Work  

    <p>This research was focused on the growth of rusted areas on the surface of carbon steel in tap waters, which were collected at 66 locations in Japan.</p><p>Rusted area ratio (θ) was defined as θ=A<sub>rust</sub>/A, where A was total surface area and A<sub>rust</sub> was the area covered with corrosion products. The changes of θ and corrosion potential (<i>E</i><sub>corr</sub>) with time were investigated.</p><p>The followings (1)-(6) were resulted.</p><p>(1)As immersion time elapsed, θ increased and <i>E</i><sub>corr</sub> became less noble.</p><p>(2)The abrupt changes in θ and <i>E</i><sub>corr</sub> with time appeared simultaneously. Stagnations of both θ and <i>E</i><sub>corr</sub> followed the above. The time of the abrupt change depended on quality of the tap water.</p><p>(3)The relationship between log{θ/(1-θ)} and <i>E</i><sub>corr</sub> was similar regardless of water quality.</p><p>This meant that the rusted area could be estimated only by measuring <i>E</i><sub>corr</sub>.</p><p>(4)The abrupt change was in θ seen from 0.2 to 0.5 and <i>E</i><sub>corr</sub> from -300 to -500 mV vs.SSE, the time at which <i>E</i><sub>corr</sub> reached -400 mV was defined as <i>t</i><sub>initial</sub>. For larger <i>t</i><sub>initial</sub>, the corrosion at small θ rusted longer.</p><p>(5)Both average and maximum localized corrosion rates were closely related to <i>t</i><sub>initial</sub>. Insight into those relations surmised the following mechanisms;</p><p>(a)When θ<0.2, the anodes were fixed, inducing localized corrosion.</p><p>(b)When θ>0.5, anodic and cathodic reactions were distributed even on the whole surface, resulting in then uniform corrosion.</p><p>(6)The authors found that the maximum localized corrosion rate, <i>v</i><sub>max</sub>(mm y<sup>-1</sup>) was a function of <i>t</i><sub>initial</sub> as <i>v</i><sub>max</sub>=0.32×<i>t</i><sub>initial</sub><sup>1/3</sup>. The unit of <i>t</i><sub>initial</sub> in this equation was hour.</p>

  • Pulsed laser deposition of Pt-WO3 of Hydrogen sensors under atmospheric conditions

    Yoshiaki Nishijima, Kenya Enomonoto, Shinji Okazaki, Taro Arakawa, Armandas Balčytis, Saulius Juodk … Show more authors

    Applied surface science   534   147568-1 - 147568-6   2020.12  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

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Review Papers 【 display / non-display

  • シリコン微小リングリング共振器の高感度センサへの応用

    荒川太郎, 岡崎慎司, 西島喜明

    光アライアンス   31 ( 4 )   14 - 19   2020.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Joint Work  

  • 光ファイバーを用いたライン型水素センサ:近年の動向と課題

    岡崎慎司,山作直貴

    化学工学   81 ( 8 )   432 - 435   2017.8

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Publisher:化学工学会   Single Work  

  • 大型鋼構造物に施工された重防食コーティングの電気特性に対する極値統計の適用方法

    徳武皓也,西晴樹,笠井尚哉,岡崎慎司

    防錆管理   60 ( 6 )   228 - 235   2017.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:日本防錆技術協会   Joint Work  

  • RF-ID技術の化学センサ応用

    岡崎慎司、山作直貴

    次世代センサ   26 ( 2 )   6 - 9   2017.1

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:一般社団法人次世代センサ協議会   Joint Work  

  • 宇宙工学分野における光ファイバセンシングの研究適用例

    水谷忠均、武田展雄、岡崎慎司、丸祐介、巳谷真司、水口周

    レーザー研究   45 ( 1 )   17 - 21   2017.1

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Joint Work  

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Industrial Property Rights 【 display / non-display

  • 固体型残留塩素センサーおよびこれを備えた水道メーター

    岡崎慎司

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    Applicant:横浜国立大学

    Application no:特願2014-250894  Date applied:2014.12.11

    Announcement no:特開2016-114376  Date announced:2016.6.23

    Patent/Registration no:特許第6518937  Date issued:2019.5.10

    Country of applicant:Domestic  

  • 分布型光ファイバ水素センサ、多点観測用の分布型光ファイバ水素センサ、水素感応膜

    岡崎慎司

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    Applicant:横浜国立大学

    Application no:特願2008-162364  Date applied:2008.6

    Country of applicant:Domestic  

  • 白金/酸化タングステン系水素感応膜の製造方法

    岡崎慎司

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    Applicant:横浜国立大学

    Application no:特願2008-162365  Date applied:2008.6

    Country of applicant:Domestic  

  • 水素分布計測を可能とする光ファイバ水素センサ及びそれを用いた測定法

    岡崎慎司

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    Application no:特願2004-169856  Date applied:2004.6.8

    Announcement no:特開2005-351651  Date announced:2005.12.22

    Patent/Registration no:特許第4524363  Date issued:2010.6.11

    Country of applicant:Domestic  

  • ガスセンサ用の膜とその製造方法

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    Announcement no:特開2003166938 

    Country of applicant:Domestic  

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Awards 【 display / non-display

  • 日本高圧力技術協会科学技術振興賞

    2016.5   日本高圧力技術協会   極値解析適用による石油タンク底板内面コーティングの劣化特性評価

    Individual or group name of awards:徳武皓也、笠井尚哉、岡崎慎司

  • 清山賞

    2015.1   電気化学会・化学センサ研究会   光ファイバ分布型水素センサの研究

    Individual or group name of awards:岡崎慎司

  • 日本高圧力技術協会科学技術振興賞

    2013.5    

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

  • 化学物質の空間分布情報をセンシングする光ファイバシステムの構築

    2019.4 - 2022.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(B)

    Investigator(s):岡崎慎司

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    Grant type:Competitive

Other external funds procured 【 display / non-display

  • 水道システムの高度化に向けたインライン・メンテナンスフリーの残留塩素計測機能付水道メーターの開発

    2018.9 - 2019.8

    Japan Science and Technology Agency  A-STEP機能検証フェーズ試験研究タイプ

    Investigator(s):岡崎慎司

  • 大学等教育研究機関における就業前及び若手技術者向けの安全工学教育プログラムの提案

    2012.4 - 2015.3

    Ministry of Health, Labour and Welfare  厚生労働科学研究費補助金(労働安全衛生総合研究事業)

    Investigator(s):岡崎慎司

Presentations 【 display / non-display

  • Recent Trend in Fire and Oil-spillage Accidents of Hazardous Material Facilities and Their Preventive Measures in Japan

    S. Okazaki, N. Kasai, M. Yamada, M. Fujiwara, H. Nakayama  [Invited]

    The 19th Kuwait/Japan Joint Symposium Advancement in Petroleum Refining Industries  Petroleum Research Center

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    Event date: 2020.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:KISR  

  • Development of fiber-optic hydrogen sensor device

    S. Okazaki, Y. Nishijima, T. Arai, Y. Maru, T, Mizutani  [Invited]

    The 13th Asian Conference on Chemical Sensors 2019 

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Denpasar, INDONESIA  

  • Effect of H2S on Corrosion Behaviors of Stainless Steels under Environments Containing Organic Acid

    T. Yonezawa, S. Okazaki, N. Kasai, H. Kihira, T.Sunaba, S.Hirano

    NACE East Asia & Pacific Area Conference 2019  NACE

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Yokohama  

Preferred joint research theme 【 display / non-display

  • 化学センサの開発及び高度利用に関する研究

  • 電気化学的手法を用いた各種プロセス技術の評価・解析

  • 有機コーティングの劣化評価技術に関する研究

Past of Collaboration and Commissioned Research 【 display / non-display

  • Development of fiber-optic oxygen sensor

    Funded Research offered by Enterprises  

    Project Year: 2005.12  -  2007.3 

  • Development of a hydrogen gas sensor

    Funded Research offered by Enterprises  

    Project Year: 2000.4  -  2002.3 

  • Development of an ozone sensor

    Funded Research offered by Enterprises  

    Project Year: 1998  -  2000 

 

Charge of on-campus class subject 【 display / non-display

  • 2022   Exercise in Technology for Energy Creation S

    Graduate school of Engineering Science

  • 2022   Exercise in Technology for Energy Creation F

    Graduate school of Engineering Science

  • 2022   Exercise in Analysis for Energy Creation S

    Graduate school of Engineering Science

  • 2022   Exercise in Analysis for Energy Creation F

    Graduate school of Engineering Science

  • 2022   Strength and Fracture of Materials

    College of Engineering Science

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Committee Memberships 【 display / non-display

  • 日本高圧力技術協会

    2017.8 - 2020.3  理事

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    Committee type:Academic society 

  • 消防庁・危険物保安室

    2017.5 - 2020.3  「危険物施設の長期使用に係る調査検討会」委員

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    Committee type:Government 

  • 電気化学会評議員

    2009.3 - 2011.2  評議委員

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    Committee type:Other 

  • 既設の地下貯蔵タンク等の腐食の評価検討及び評価結果に応じた合理的な点検・保守管理手法の調査検討委員会及び既設の地下貯蔵タンクの腐食防止対策に関する調査検討委員会

    2008.9 - 2009.3  委員

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    Committee type:Other 

  • 電気化学会産学フォーラム運営委員

    2008.7 - 2010.2  委員

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    Committee type:Other 

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Social Contribution(Extension lecture) 【 display / non-display

  • 講義・実習を通して学ぶ-材料の劣化とその対策

    工学研究院  横浜  2014.9

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    Type:Extension Lecture

    工業材料は、自らあるいは環境との相互作用によって劣化し、莫大な損失を生じます。本講義では実際上の問題点をふまえ、材料の劣化とその対策について平易にかつ学問的な講義を行います。

  • エンジニアのための実験講座②-ステンレス鋼を中心とした腐食防食の基礎とその対策

    工学研究院  横浜  2014.2

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    Type:Extension Lecture

    ステンレス鋼の腐食防食の基礎と評価手法の原理を学ぶ。

  • エンジニアのための実験講座①-腐食防食の評価・計測技術

    工学研究院  横浜  2014.1

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    Type:Extension Lecture

    腐食防食の評価に必要な電気化学計測の基礎及び実験手法を学ぶ。

  • 講義・実習を通して学ぶ-材料の劣化とその対策

    工学研究院  横浜  2013.9

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    Type:Extension Lecture

    工業材料は、自らあるいは環境との相互作用によって劣化し、莫大な損失を生じます。本講義では実際上の問題点をふまえ、材料の劣化とその対策について平易にかつ学問的な講義を行います。

  • エンジニアのための実験講座②-ステンレス鋼を中心とした腐食防食の基礎とその対策

    工学研究院  横浜  2012.2

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    Type:Extension Lecture

    ステンレス鋼の腐食防食の基礎と評価手法の原理を学ぶ。

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