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Affiliation |
Faculty of Environment and Information Sciences, Division of Artificial Environment and Information |
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Job Title |
Associate Professor |
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Date of Birth |
1984 |
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Research Fields, Keywords |
Physical chemistry, risk synbiosis, Safety engineering, energetic materials |
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Mail Address |
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Related SDGs |
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IZATO Yuichiro
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The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 Calculating liquid-phase entropy using a real gas model within the QM/PCM framework(PHYSICAL CHEMISTRY CHEMICAL PHYSICS) 2026.02
【Published Thesis】 Detailed pyrolysis mechanism for ammonium nitrate and ammonium chloride mixtures(COMBUSTION AND FLAME) 2026.01
【Published Thesis】 Direct self-sustained fragmentation cascade of reactive droplets 2017.02
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 Calculating liquid-phase entropy using a real gas model within the QM/PCM framework(PHYSICAL CHEMISTRY CHEMICAL PHYSICS) 2026.02
【Published Thesis】 Detailed pyrolysis mechanism for ammonium nitrate and ammonium chloride mixtures(COMBUSTION AND FLAME) 2026.01
【Published Thesis】 Computation of rate coefficients in solutions based on transition state theory combined with a heuristically corrected polarizable continuum model: intermolecular Diels-Alder reactions as case studies(PHYSICAL CHEMISTRY CHEMICAL PHYSICS) 2024.07
Education 【 display / non-display 】
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2013.10-2016.3
Yokohama National University Doctor Course Completed
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2008.4-2010.3
Yokohama National University Master Course Completed
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2004.4-2008.3
Yokohama National University Material sciences Graduated
Degree 【 display / non-display 】
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Doctor of Engineering - Yokohama National University
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Master of Engineering - Yokohama National University
Campus Career 【 display / non-display 】
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2021.4
Duty Yokohama National UniversityFaculty of Environment and Information Sciences Division of Artificial Environment and Information Associate Professor
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2016.10-2021.3
Duty Yokohama National UniversityFaculty of Environment and Information Sciences Division of Artificial Environment and Information Assistant Professor
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2023.4
Concurrently Yokohama National UniversityInstitute for Multidisciplinary Sciences Center for Creation of Symbiosis Society with Risk Associate Professor
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2021.4
Concurrently Yokohama National UniversityGraduate School of Environment and Information Sciences Department of Artificial Environment Associate Professor
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2021.4
Concurrently Yokohama National UniversityCollege of Engineering Science Department of Chemistry, Chemical Engineering and Life Science Associate Professor
External Career 【 display / non-display 】
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2010.4-2013.9
Technical Support Staff
Academic Society Affiliations 【 display / non-display 】
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2018
公益社団法人 化学工学会
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2016.7
一般社団法人日本燃焼学会
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2013
Japan explosive society
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2013
Japan Society of Safety Engineering
Research Areas 【 display / non-display 】
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Social systems engineering
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Safety engineering
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Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Aerospace engineering
Qualification acquired 【 display / non-display 】
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Person in Charge of Security Handling Explosives (first and second kind)
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Hazardous Material Handler (first kind)
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Pollution Prevention Manager
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Person in Charge of High-pressure Gas Production Security (chemical machinery and frozen machine)
Research Career 【 display / non-display 】
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エネルギー物質の分解・燃焼反応機構の解明
Project Year：
Books 【 display / non-display 】
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化工計算によるプロセス設計とスケールアップ
伊里友一朗（ Role： Contributor , QM/PCM法を用いた液相中化学種の熱力学データ推算）
(株)技術情報協会
Language：Japanese Book type：Scholarly book
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The Latest Trend of the Development and Implementation of Ionic Liquids
（ Role： Contributor）
Language：Japanese Book type：Scholarly book
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安全工学便覧(第4版)
安全工学会（ Role： Contributor）
コロナ社 （ ISBN:978-4-339-07821-3 ）
Total pages：1192 Language：Japanese Book type：Scholarly book
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イオン液体研究最前線と社会実装
渡邊正義監修（ Role： Contributor）
CMC出版
Language：Japanese Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
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Combustion and decomposition reaction mechanisms of inorganic energetic salts
Yu-ichiro Izato
2016.3
Doctoral Thesis Single Work
Papers 【 display / non-display 】
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Calculating liquid-phase entropy using a real gas model within the QM/PCM framework
Izato, YI; Koshi, M
PHYSICAL CHEMISTRY CHEMICAL PHYSICS 28 ( 11 ) 6952 - 6962 2026.2 [Reviewed]
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Tanaka, M; Inoue, Y; Izato, Y; Mori, S
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 198 2026.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Detailed pyrolysis mechanism for ammonium nitrate and ammonium chloride mixtures
Izato, YI; Nakamura, Y; Watanabe, K; Miyake, A
COMBUSTION AND FLAME 283 2026.1 [Reviewed]
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Combustion characteristics of energetic ionic liquids of ammonium dinitramide, monomethylamine nitrate, and acetamide
Shiota Kento, Furuno Gaku, Izato Yu-ichiro, Matsunaga Hiroki, Higashi Eiko, Katoh Katsumi, Habu Hir … Show more authors
Shiota Kento, Furuno Gaku, Izato Yu-ichiro, Matsunaga Hiroki, Higashi Eiko, Katoh Katsumi, Habu Hiroto, Kato Takafumi Hide authors
Science and Technology of Energetic Materials 87 ( 1 ) 1 - 8 2026 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 火薬学会 Joint Work
Technologies that modify the combustion of the propellant components are crucial for developing novel high-energy propellants. Amide compounds function as fuels and also act as melting point depressants for ammonium dinitramide (ADN)-based energetic ionic liquids (EILs). A formulation comprising ADN, monomethylamine nitrate (MMAN), and urea in a 40/40/20 weight ratio (AMU442) has demonstrated potential as a hydrazine substitute. However, AMU442 faces limitations in terms of its ignitability and reactivity. In this study, the flame structure of acetamide (AA), which exhibits superior reactivity with ADN compared with urea in the liquid phase, was investigated. AA was combined with ADN/MMAN to function both as a fuel and melting point depressant. The influence of amide compounds on the combustion process was systematically explored. Burning rates and combustion temperatures of two mixtures with varying oxygen balances (ADN/MMAN/AA, denoted as AMA) were assessed using strand burners. The results indicated that AMA992 and AMA442 exhibited significantly higher burning rates at 68 mm・s<sup> -1</sup> and 5.5 mm・s<sup> -1</sup> , respectively, compared to 2.7 mm・s <sup> -1</sup> for AMU442. The combustion temperature profiles revealed six stages: liquid phase, gas-liquid phase, 1<sup> st</sup> flame region, two constant temperature plateaus (primary and secondary), and 2<sup> nd</sup> flame region. Both AMU442 and AMA992 exhibited the secondary plateau during the 2<sup> nd</sup> flame stage. The maximum flame temperature of AMA992 exceeded 1800°C, surpassing 1684°C of AMU442, while AMA442 reached a lower maximum of approximately 900°C. In AMA442, ADN and AA predominantly reacted in the liquid phase, and the primary plateau was attributed to the endothermic decomposition of MMAN. In AMA992, ADN decomposed in the gas phase and reacted with MMAN to generate a high-temperature flame. The liquid-phase reaction between ADN and AA contributed to a higher burning rate than that observed in AMU442. Furthermore, the heat released in the AMA992 flame enhanced the burn rate. These findings suggest that selecting a fuel that both lowers the melting point and reacts effectively with ADN in the liquid phase, such as AA, offers a promising approach to overcome the low reactivity limitations of AMU.
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Risk Assessment for Societal Implementation of Large Scale Battery Energy Storage Systems
Suzuki Tomoya, Nakayama Jo, Izato Yu-ichiro, Miyake Atsumi
Journal of Japan Society for Safety Engineering 64 ( 6 ) 472 - 478 2025.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Soceiety for Safety Engineering Joint Work
Review Papers 【 display / non-display 】
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Study on Ionic-Liquid Propellant for Low-Toxic Space Propulsion System
KATSUMI Toshiyuki, MATSUNAGA Hiroki, ITOYAMA Noboru, MATSUMOTO Kotaro, SHIOTA Kento, IZATO Yu-ichir … Show more authors
KATSUMI Toshiyuki, MATSUNAGA Hiroki, ITOYAMA Noboru, MATSUMOTO Kotaro, SHIOTA Kento, IZATO Yu-ichiro, HABU Hiroto, MIYAKE Atsumi Hide authors
Journal of the Combustion Society of Japan 65 ( 214 ) 233 - 238 2023.11 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution) Publisher：Combustion Society of Japan Joint Work
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高エネルギー物質研究における量子化学計算活用のすすめ
伊里友一朗
Explosion 33 ( 1 ) 11 - 16 2023.5
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Detailed kinetic modeling for liquid-phase reactions based on quantum chemical calculations
Yu-ichiro Izato
Journal of the combustion society of Japan 65 ( 212 ) 79 - 86 2023.5 [Reviewed] [Invited]
Authorship：Lead author, Last author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Combustion Society of Japan Single Work
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大規模エネルギー貯蔵システムのリスクアセスメント手法の高度化
三宅淳巳、中山穣、塩田謙人、伊里友一朗
低炭素社会の実現に向けた技術および経済・社会の定量的シナリオに基づくイノベーション政策立案のための提案書 2022.5 [Reviewed] [Invited]
Language：Japanese Publishing type：Internal/External technical report, pre-print, etc. Single Work
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本格普及期における水素ステーションの包括的フィジカルリスクアセスメント
鈴木智也、伊里友一朗、三宅淳巳
セイフティ・エンジニアリング 49 ( 1 ) 2022.3
Authorship：Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：公益財団法人総合安全工学研究所 Joint Work
Awards 【 display / non-display 】
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論文賞
2020.5 一般社団法人火薬学会 硝酸ヒドロキシルアミン水溶液の凝縮相熱分解に関する詳細反応モデル
Individual or group name of awards：伊里友一朗,三宅淳巳
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奨励賞
2019.3 横浜国立大学
Individual or group name of awards：伊里友一朗
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奨励賞
2018.11 特定非営利活動法人 安全工学会 テトラヒドロフラン過酸化物の生成と分解に関する詳細反応機構
Individual or group name of awards：伊里友一朗
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技術賞
2018.5 一般社団法人火薬学会 硝酸アンモニウムの分解反応解析
Individual or group name of awards：伊里友一朗
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奨励賞
2016.5 一般社団法人火薬学会 硝酸アンモニウム、特に酸化銅混合物との熱分解機構に関する研究
Individual or group name of awards：伊里友一朗
Grant-in-Aid for Scientific Research 【 display / non-display 】
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第一原理/インフォマティクスアプローチによるオルガノボランの自着火反応学理構築
Grant number：25K01462 2025 - 2028.3
Grant-in-Aid for Scientific Research(B)
Investigator(s)：伊里友一朗
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エネルギー・マルチペアイオン液体推進剤の創成と能動的反応制御
Grant number：23K17794 2023.4 - 2026.3
JST Grant-in-Aid for Challenging Research (Exploratory)
Investigator(s)：伊里 友一朗
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液相詳細反応機構を考慮した革新的熱流体解析に基づく自着火現象の解明
Grant number：22H01725 2022.4 - 2026.3
Grant-in-Aid for Scientific Research(B)
Investigator(s)：伊里 友一朗
Authorship：Principal investigator Grant type：Competitive
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高速反応学理に基づく革新的エネルギー物質の創製と高度着火燃焼制御
2020.4 - 2025.3
科学研究費補助金 Grant-in-Aid for Scientific Research(A)
Investigator(s)：三宅 淳巳
Grant type：Competitive
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液相詳細反応モデリングによる宇宙機用推進剤の自着火反応機構解明 研究課題
2020.4 - 2024.3
科学研究費補助金 Grant-in-Aid for Early-Career Scientists
Investigator(s)：伊里友一朗
Grant type：Competitive
Other external funds procured 【 display / non-display 】
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高エネルギーイオン液体推進システムの創発
2023.4 - 2026.3
Japan Science and Technology Agency 創発的研究支援事業
Authorship：Principal investigator
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石油コンビナート防災と消防戦略立案を支援するリスクアセスメントシステムの開発
2021.6 - 2023.3
Ministry of Public Management, Home Affairs, Posts and Telecommunications 令和３年度消防防災科学技術研究推進制度
Authorship：Principal investigator
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尿素SCRシステム開発に向けた尿素水溶液の液相熱分解詳細反応モデル構築と検証
2019.4 - 2020.3
Private Foundations 東燃ゼネラル石油研究奨励・奨学財団 研究助成
Investigator(s)：伊里 友一朗
尿素SCRシステム開発に向けて、尿素水溶液の液相熱分解詳細反応モデルを構築し、実験的に検証する。
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本格普及期に向けた水素ステーションの安全性に関わる研究開発
2018.9 - 2024.2
Other Ministries
Investigator(s)：伊里 友一朗
本格普及期に向けた水素ステーションのリスク評価を行う。
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エネルギーイオン液体推進剤の電気着火機構の解明とモデル化
2018.3 - 2019.3
Private Foundations 公益財団法人火薬工業技術奨励会研究助成金
Presentations 【 display / non-display 】
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A Reliability Estimation Method for Machine Learning-based Anomaly Detection Systems: A Case Study of Hydrogen Leakage from a Hydrogen Pipeline
Jun Furota, Jo Nakayama, Kazuyuki Namba, Ryosuke Omori, Tomoya Suzuki, Yu-ichiro Izato
Asia Pacific Symposium on Safety 2025
Event date： 2025.11
Language：English Presentation type：Oral presentation (general)
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Challenges in Machinery Risk Assessment and the Development of Work Procedures Manuals for Safer Operations
Koichi Shirakashi, Masahide Wakakura, Atsumi Miyake, Yu-ichiro Izato
Asia Pacific Symposium on Safety 2025
Event date： 2025.11
Language：English Presentation type：Oral presentation (general)
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Quantitative HAZOP Using Multiphysics System-level Modeling for a Lithium-ion Battery Module
Tomoaya Suzuki, Jo Nakayama, Yu-ichiro Izato, Quantitative HAZOP Using Multiphysics System-level Modeling for a Lithium-ion Battery Module
Asia Pacific Symposium on Safety 2025
Event date： 2025.11
Language：English Presentation type：Oral presentation (general)
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Toward the Development of Voltage Application Thrusters: Combustion Tests of Energetic Ionic Liquids
Ryosuke Omori, Noboru Itouyama, Hiroto Habu, Yu-ichiro Izato
The 48th International Pyrotechnics Society Seminar
Event date： 2025.9
Language：English Presentation type：Oral presentation (general)
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Detailed kinetic modeling for the thermal decomposition of hydroxyethylhydrazinium nitrate in condensed phase
Ryosuke Omori, Kanta Sugahara, Kento Shiota, Hiroto Habu, Yu-ichiro Izato
8th Central and Eastern European Conference on Thermal Analysis and Calorimetry
Event date： 2025.9
Language：English Presentation type：Poster presentation
Charge of on-campus class subject 【 display / non-display 】
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2026 Exercise in Science of fast chemical reactionsⅣ
Graduate School of Environment and Information Sciences
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2026 Exercise in Science of fast chemical reactionsⅢ
Graduate School of Environment and Information Sciences
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2026 Exercise in Science of fast chemical reactionsⅡ
Graduate School of Environment and Information Sciences
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2026 Exercise in Science of fast chemical reactionsⅠ
Graduate School of Environment and Information Sciences
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2026 Exercise in Globalization
Graduate School of Environment and Information Sciences
Committee Memberships 【 display / non-display 】
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高圧ガス保安協会 一般法技術委員会
2022.4
Committee type：Academic society
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高圧ガス保安協会 事故調査解析委員会
2022.4
Committee type：Academic society
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高圧ガス保安協会 高圧ガス取扱施設におけるリスクアセスメント及びリスクマネジメントの普及検討委員会
2019.12 - 2020.3
Committee type：Academic society
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高圧ガス保安協会 高圧ガス事故を題材とした視聴覚資料の整備委員会
2018.10
Committee type：Academic society
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労働安全総合研究所 異常反応による災害防止リスクアセスメント等手法検討委員
2018.7 - 2020.3
Committee type：Academic society