Researcher Database

（Last updated : 2025-11-26 12:02:19）　

FUJIWARA HIROSHI

Department / Course College of Science and Engineering Department of Mechanical Engineering

Title / Position Professor

Click to view the Scopus page. The data was downloaded from Scopus API on Sep 01, 2025. via http://api.elsevier.com and http://www.scopus.com .

Other Affiliations
1.	Research Organization of Science and Technology Research Center of Advanced Materials
2.	Graduate School of Science and Engineering

Academic background
1.	1999/03 Degree Acquisition	│ Ritsumeikan University Doctor of Engineering
2.	1996/04～1999/03	Doctorial Course │ Graduate School of Science and Engineering │ Ritsumeikan University │ Completed Doctor of Engineering
3.	1996/03 Degree Acquisition	│ Ritsumeikan University Master of Engineering
4.	1994/04～1996/03	Master Course │ Ritsumeikan University │ Completed Master of Engineering
5.	1990/04～1994/03	Department of Mechanical Engineering │ College of Science and Engineering │ Ritsumeikan University │ Graduated Bachelor of Engineering

Business career
1.	2021/04 ～	Professor │ College of Science and Engineering, Department of Mechanical Engineering │ Ritsumeikan University
2.	2016/04 ～ 2021/03	Professor │ Faculty of Science and Technology │ Shizuoka Institute of Science and Technology
3.	2011/04 ～ 2016/03	Associate Professor │ Faculty of Science and Engineering │ Doshisha University
4.	2005/04 ～ 2011/03	│ │ Ritsumeikan University
5.	1999/04 ～ 2005/03	Research Associate │ Environmental Systems Engineering │ Kochi University of Technology

Research activities
1.		The Japan Society of Mechanical Engineers
2.		The Japan Institute of Metals and Materials
3.		The Society of Materials Science, Japan

Subject of research
1.	Research on material development that achieves trade-off physical characteristics by heterostructure control
2.	Research on the development of high-precision, long-life mold materials by heterostructure control
3.	Study on expression of extreme mechanical properties of high entropy alloy by heterostructure control

Research summary
Fabrication and Application of Advanced Heterostructure Materials Utilizing powder metallurgy technology, we are developing innovative materials by controlling various heterostructures. We control the microstructure in a unique network and develop materials with excellent mechanical and physical properties. Since such excellent properties depend on the unique microstructure, we perform various analyzes using an electron microscope.

Present specialized field
Composite materials and interfaces, Structural materials and functional materials, Material processing and microstructure control, Nanomaterials, Mechanics of materials and materials (Keyword：Microstructure Evolution, Powder Metallurgy, Crystallographic Orientation Relationship Analysis)

Papers
1.	2026/02	Electrochemical behavior of harmonic microstructured CoCrFeMnNi high-entropy alloy in strong acidic HCl and H2SO4 solutions │ Materials Chemistry and Physics │ 349 (2),pp.131839
2.	2025/05/28	Classification of magnetic behavior in annealed rapid-quenched (Sm0.8Zr0.2)1.1(Fe0.9Co0.1)11.3Ti0.7 magnet powders using the stepwise measurement of the remanent magnetization │ Journal of Magnetism and Magnetic Materials │ 629 (10),pp.173242
3.	2025/04/28	Development of a 1,000°C class creep testing machine for ultraminiature specimens and feasibility verification │ Journal of the Mechanical Behavior of Materials │ 34 (1)
4.	2025/03	Effect of Microstructure on Activation Energy for High Temperature Deformation of SUS316L Austenitic Stainless Steel │ Journal of the Japan Society of Powder and Powder Metallurgy │ 72 (Supplement),pp.S1383-S1387
5.	2025/03	Hetero-Deformation-Induced (HDI) Softening of a Harmonic Structure Designed CrMnFeCoNi Alloy Compact at Elevated Temperatures │ Journal of the Japan Society of Powder and Powder Metallurgy │ 72 (Supplement),pp.S165-S169
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Academic conference presentation
1.	2025/07/29	Expansion of the STEP method to magnetically isotropic magnets
2.	2025/07/29	The correlation between the coercivity and microstructure of the novel 1-12-type sintered magnet under high molding pressure
3.	2025/07/04	A unique high-temperature deformation mechanism in a CrMnFeCoNi alloy
4.	2025/07/03	Application of bi-modal milling process to fabricate harmonic structure materials
5.	2025/07/03	Creep Strength of AlCoCrFeNi High-Entropy Alloy Fabricated by Spark Plasma Sintering
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Grants-in-Aid for Scientific Research -KAKENHI-
1.	2019/04/01 ～ 2022/03/31	Harmonic Microstructure Control and Mechanical Properties of of High Entropy Alloy │ Grant-in-Aid for Scientific Research(B)
2.	2014/04/01 ～ 2017/03/31	Room and High Temperature Strength of Harmonic Structured Composite with Almina Dispersed Ti-Al and Titanium │ Grant-in-Aid for Scientific Research(C)
3.	2011 ～ 2013	Development of High Hardness and Toughness Materials by Harmonic Microstructure Control │ Grant-in-Aid for Scientific Research(C)
4.	2009 ～ 2011	Creation of High Performance Nano-Meso Harmonic Structure Materials and the Evaluation of Their Mechanical Properties │ Grant-in-Aid for Scientific Research(B)

Department laboratory expense researcher number
80320117

researchmap Researcher code
7000002237

External Researcher ID
ORCID ID
https://orcid.org/0009-0005-8996-941X