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Home > Tenured Faculties > Ohashi Hidenori

Tenured Faculties

Ohashi Hidenori

Affiliation Institute of Engineering
Division Division of Applied Chemistry
Research field Chemical engineering, Transport property, Material design
Keyword(S) Continuous protein refolding system, Fuel cell, Diffusion in polymer
Research experience

・Apr.2008-Feb. 2016: Assistant Professor, Chemical Resources Laboratory, Tokyo Institute of Technology
・Mar.2016-Feb.2021: Associate Professor, Tokyo University of Agriculture and Technology
・Mar.2021-Present: Associate Professor(Tenured), Tokyo University of Agriculture and Technology

Educational background

・2003: School of Engineering, The University of Tokyo (Bachelor of Engineering)
・2005: Graduate School of Engineering, The University of Tokyo (Master of Engineering)
・2008: Graduate School of Engineering, The University of Tokyo (Ph.D of Engineering)


* The latest information is shown at the member's website.
(At Mar . 2021)
・Aug. 2005: International Congress on Membranes and Membrane Processes 2005, Student Award.
・Oct. 2006: 4th COE 21 International Symposium on Human-Friendly Materials Based on Chemistry Frontier of Human-Friendly Materials and Processes for Sustainable Society, Poster Award.
・Sep. 2010: Journal of Chemical Engineering Japan, Outstanding Paper Award of 2009.
・May. 2014: Incentive Award, The Membrane Society of Japan

Selected papers and publications

* The latest information is shown at the member's website.
(At Mar . 2021)
・Hidenori Ohashi, Xueqin Chi, Hidenori Kuroki, and Takeo Yamaguchi, "Response Sensitivity of a Gating Membrane Related to Grafted Polymer Characteristics", Industrial and Engineering Chemistry Research, 55(6), 1575-1581 (2016).
・Hidenori Ohashi, Sae Ebina, and Takeo Yamaguchi, "Logistic Gate-Like Permeable Property of Gating Membrane with Ion-Recognition Polyampholyte",
Polymer, 55(6), 1412-1419 (2014).
・Hyangmi Jung, Hidenori Ohashi, Gopinathan M. Anilkumar, Peilin Zhang, and Takeo Yamaguchi, "Zn2+ Substitution Effects in Layered Double Hydroxide (Mg(1-X)Znx)2Al: Textural Properties, Water Content and Ionic Conductivity", Journal of Materials Chemistry A, 1(42), 13348-13356 (2013).
・Zhang Han, Hidenori Ohashi, Takanori Tamaki, and Takeo Yamaguchi, "Water Movement in a Solid-State Alkaline Fuel Cell Affected by the Anion-Exchange Pore-Filling Membrane Properties", The Journal of Physical Chemistry C, 117(33), 16791-16801 (2013).
・Hidenori Ohashi, Tomoaki Abe, Takanori Tamaki, and Takeo Yamaguchi, "Influence of Spacer Length between Actuator and Sensor on their Mutual Communications in Poly(N-Isopropylacrylame-co-β-Cyclodextrin), an Autonomous Coordinative Shrinking/Swelling Polymer", Macromolecules, 45(24), 9742-9750 (2012).
・Hidenori Ohashi, Takanori Tamaki, and Takeo Yamaguchi, "Physical Reexamination of Parameters on a Molecular Collisions-based Diffusion Model for Diffusivity Prediction in Polymers", The Journal of Physical Chemistry B, 115(51), 15181-15187 (2011).
・Hidenori Ohashi, Taichi Ito, Takeo Yamaguchi, "A New Free Volume Theory Based on Microscopic Concept of Molecular Collisions for Penetrant Self-Diffusivity in Polymers", Journal of Chemical Engineering of Japan, 42(2), 86–94 (2009).

Research Description

Our living world is not equilibrium world but non-equilibrium one, which includes mass and heat transport inevitably. To effectively separate and acquire usable energy and substances in such world, it is indispensable to acquire the information of non-equilibrium physical property, that is to say, transport property. On the other hand, the acquisition and understanding of the transport property is delayed to a large extent, compared with the knowledge as for equilibrium and reaction. Such circumstance is one of the bottleneck of the present technological development.
The performance of chemical systems are often impaired by mass transfer as a rate determining step; e.g. oxygen diffusion in fuel cell systems. But on the other hand, the rate determining step can be resolved by analyzing the system concerning transport phenomena, and subsequently mitigating the diffusion limited phenomena.
In my laboratory, by utilizing such legitimate device design, chemical systems in energy field and life-science field, which can contribute to the society will be developed; such as continuous protein refolding systems, fuel cell systems, water vapor recovering systems, and so on. Of course, the knowledge of the transport property itself is of significance as noted above. Therefore we will approach to facile and universal methods of diffusivity measurement and the prediction model for the diffusivity.

About TUAT's tenure-track program

As a researcher in university, two points are of significance I guess; one is to proceed own research and the other is to educate students with own mind and methodology (In my case, please see above and below respectively). However, compatible execution of the two normally requires sufficient experiment. The TUAT tenure-track program kindly offers the opportunity to us to get accustom to them directly and indirectly by mitigating part of lectures, supporting office functions, and arranging a mentor. The system also provides the opportunity to us to interact with other tenure track members in different research fields, which inspires us novel, interdisciplinary, and challenging collaborative research themes.

Future aspirations

As for the research perspective, please see the “Summary of Research”. As for the educational perspective, my concept is “one can drastically grow up, when he/she touches with new notions”. One of the important and new notions for faculty 4th grade and graduate students is to approach to the questions not solved yet, and the research is one of the most suitable subjects for that. Therefore, three years are enough long for students to dramatically grow up.
In addition to the research skills, I would like to educate “persons who can educate other persons”. Through successive education of others, persons connecting generations will exponentially spread and can even contribute to the world growth, which can never be attained by only one person.