Japan–Taiwan–Korea International Symposium on Pioneering Electronic Materials and Devices, Nanoscale Measurements, and Information Science (PEMDMI 2026)

Jointed with the 27th RIES–HOKUDAI International Symposium "耀"[You] (28 – 29 October 2026)

Professor Hocheon Yoo from Hanyang University (South Korea) visited Research Institute for Electronic Science (RIES) during the 2026 IEEE International Conference on Device Technologies for Diversified Applications (DATA 2026) and delivered a lecture at the institute’s academic seminar series. He gave a highly detailed and accessible presentation on his work creating unique devices by effectively combining oxide devices and organic semiconductors (October 13).

Prof. Nianpeng Lu kindly visited our laboratory after attending iWOE32 and before return to Beijing. Prof. Lu gave us a lecture on the method that switchs physical properties of transition metal oxide films using water in ionic liquid (October 1, 2026).

We hosted the mini-workshop on July 3 (Fri) and 4 (Sat), 2026, in the first-floor conference room of RIES at Hokkaido University. The event was co-organized by the Hokkaido Chapter of the Japan Society of Applied Physics (as the chapter’s second research meeting of 2026), Network Joint Research Center for Materials and Devices, and Crossover Alliance (to Create the Future with People, Intelligence and Materials).

Prof. Ying-Hao Chu (National Tsing Hua University, Taiwan) HP
Prof. Xiaojia Wang (The University of Minnesota, USA) HP
Prof. Haeyong Kang (Pusan National University, Korea) HP
Prof. Yoshiaki Nakamura (Graduate School of Engineering Science, The University of Osaka) HP
Prof. Hidekazu Tanaka (SANKEN, The University of Osaka) HP
Prof. Jaekwang Lee (Pusan National University, Korea) HP
Prof. Hyoungjeen Jeen (Pusan National University, Korea) HP

Ms. Laura Scholz, a Ph.D. student under Professor Norbert Koch at Humboldt University Berlin, stopped by our lab before returning to Berlin. We held a student-led seminar and enjoyed interacting with her (April 20th, 2026). 

The 5th Workshop on Functional Materials Science (FMS2026) was successfully held at the University of Tokyo (March 9-10, 2026). 

The Mini Workshop on Oxide Thermo-Iontronics (https://sites.google.com/view/oxide-thermo-iontronics/home) was successfully held at Research Institute for Electronic Science, Hokkaido University, on October 15, 2025.

The discussion focused on “Thermo-Iontronics,” covering topics such as redox reaction, hydrogenation, thermal switches, perovskite oxides, layered materials, ion position displacement, and atomic-resolution observation of oxides.

Invited speakers included:
Prof. Hyoungjeen Jeen (PNU), Prof. Hidekazu Tanaka (U. Osaka), Prof. Kaya Kobayashi (Hokkaido U.), Prof. Ahrong Jeong (Hokkaido U.), Prof. Haobo Li (U. Osaka), Prof. Tsukasa Katayama (Hokkaido U.), Prof. Yohei Yomogida (Hokkaido U.), Prof. Takuto Soma (Tohoku U.), Prof. Bin Feng (U. Tokyo), Mr. Yeongdeuk Mun (PNU), Ms. Hyeyun Chung (PNU), Ms. Haruka Zaizen (U. Osaka), Mr. Kenta Nakanishi (U. Osaka), Mr. Kungwan Kang (Hokkaido U.), and Ms. Mitsuki Yoshimura (Hokkaido U.).

After the scientific discussions in the conference room, participants continued informal exchanges at the izakaya Umi-dayori. (https://www.hotpepper.jp/strJ000760747/)

September 6, 2025, an almni party was held nearby Nagoya St. for the first time in 10 and a half years.

August 5, 2025, a 25-member delegation from Korea Polytechnics visited our institute. After listening to an explanation of the Institute’s history, mission, and research fields, they toured our laboratory, Nikon Imaging Center, and the clean room. 

The 9th Workshop on Phonon Engineering was held in Miyakojima Island on May 18-19, 2025. Prof. Masahiro Nomura (U. Tokyo) mainly organized the workshop and he kindly invited Prof. Ohta as the invited speaker. Prof. Ohta gave a talk on thermal switches (= themal transistors). Ms. Mitsuki Yoshimura gave a contributed talk on the thermal conductivity of lantanide oxides and received the best presentation award. 

Prof. Ohta visited Pandit Deendayal Energy University (PDEU) on invitation from Prof. Anup Sanchela (March 19) and gave an invited talk on Solid-State Electrochemical Thermal Transistors. Although the lecture room was quite large, the room was fully occupied and several students listened standing. 

The 8th International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2024) has been held in Jeju island, Korea. Prof. Ohta and Dr. Jeong gave talks (2024.11.26). Thanks to Prof. Hyejin Jang (Seoul National University), the symposium was great success. 

Degree conference ceremony Fall 2024 has been held. Dr. Zhiping Bian received his diploma. (2024.09.25) 

Prof. Ohta and Dr. Jeong attened Nano Korea 2024 held in KINTEX, Korea from July 3rd to 5th, and made a connection with Prof. Hyejin Jang (Seoul National University) and Prof. Qiye Zheng (The Hong Kong University of Science and Technology).

[TS14F6_I_1] Hiromichi Ohta, “Oxide-based Solid-State Electrochemical Thermal Transistors”, NANO KOREA 2024, KINTEX, Korea, July 3-5, 2024 Invited.

[TS14F6_O_2] Ahrong Jeong, Mitsuki Yoshimura, Zhiping Bian, Jason Tam, Bin Feng, Yuichi Ikuhara, Yusaku Magari, Takashi Endo, Yasutaka Matsuo, and Hiromichi Ohta, “Solid-State Thermal Transistors with Switching Width of 9.5 W/mK”, NANO KOREA 2024, KINTEX, Korea, July 3-5, 2024 Oral.

Ahrong Jeong, Zhiping Bian, Mitsuki Yoshimura, Bin Feng, Yuichi Ikuhara, Yusaku Magari, Hiromichi Ohta, “Solid-State Electrochemical Thermal Transistors with Large Thermal Conductivity Switching Width”  Breaking News

Hiromichi Ohta, “Solid-State Electrochemical Thermal Transistor based on Oxygen Sponge SrCoOx (2 < x < 3)” Invited Talk

HU-PNU Mini Symposium on Functional Materials Science was held in RIES, Hokkaido University as the event of the BK21 program at Pusan National University. (January 11th, 2024) 

We attended the Advanced Materials Research GRAND MEETING, MRM2023 held in Kyoto December 11-16, 2023. 

We held the 26th HU-SNU Joint Symposium Satellite Session from November 2nd to 3rd. 

We attended the iWOE-29 held in Busan, Korea, from October 15th to 18th.

It was a wonderful workshop. We attended the FMS 2023 held in Busan, Korea, from June 19th to 22nd.

Prof. Ohta visited IQST, Jiangsu University on invitation from Prof. Yuqiao Zhang (May 28 – June 1). The ex-students who are doing research in China gathered like a reunion. 

Ms. Mitsuki Yoshimura (M1) visited Pusan National University on invitation from Prof. Hyoungjeen Jeen (Physics, Pusan National University) for one week (2023.5.16-23). 

We had a farewell party and a welcome party (2023.4.7). Ms. Hui Yang (Doctoral student at Beijing Jiaotong University), who spent one year as a visiting scholar at the Research Institute for Electronic Science, Hokkaido University, will return to China after completing her research period. Also, as of April 1st, Dr. Ahrong Jeong has joined as a postdoctoral researcher. In addition, Mr. Hikaru Sadahira, Mr. Diwen Chen, and Mr. Ren Mitsuya have joined us.

Degree conference ceremony Spring 2023 has been held. Dr. Binjie Chen received his diploma. Mr. Rui Yu received his Master’s degree. (2023.03.23) 

Prof. Hyoungjeen Jeen, Dean of the Department of Physics, Pusan National University, South Korea, visited our laboratory (2023.2.14). The photo was taken when Prof. Jeen paid a courtesy visit to Director Ijiro of Research Institute for Electronic Science, Hokkaido University. Until now, we have conducted joint research between two laboratories, exchanged students, and mainly held workshops between two countries, but I hope that we will be able to collaborate on a larger scale in the future. 

January 9th-12th, we participated in the 7th International Conference on Advanced in Functional Materials (AFM 2023) in Hakata. 

November 17th-18th, we participated in the 19th meeting of the Thin Film Materials and Devices in Kyoto.

The students kindly held the birthday party of the professor, as well as the wrap-up party of the Japan Society of Applied Physics held at Tohoku University Kawauchi Campus (2022.9.21) 

Degree conference ceremony Spring 2022 has been held on March 24th, 2022. Ms. Qian Yang received her Ph.D. diploma. Mr. Liao Wu and Mr. Takashi Fujimoto received their master’s degrees. At the same time, Dr. Qian Yang received the Dean’s Award from Prof. Haseyama, dean of Graduate School of Information Science and Technology.

Dr. Qian Yang will be a Lecturer at Jiangsu University, China.

Degree conference ceremony Fall 2021 has been held and Dr. Gowoon Kim and Dr. Mian Wei received their diploma. (2021.09.24) Dr. Kim received a diploma as the representative of the Graduate School of Information Science and Technology. At the same time, she received the Dean’s Award.

Dr. Mian Wei will be an Assistant Professor at Henan University, China

Dr. Yuqiao Zhang, a JSPS Research Fellow, has promoted to a specially appointed professor at Jiangsu University, China (2021.4.13).

After completing the master’s program (supervisor: Professor Bo-Ping Zhang) at the University of Science and Technology Beijing, China, Mr. Zhang studied as a research student at RIES, Hokkaido University for half a year as a research student. He enrolled in the doctoral program at the Graduate School of Information Science and Technology, Hokkaido University. As a result of three years of research on oxide thermoelectric materials, he has made various research achievements which were published in journals including Nature Communications, and after obtaining his doctoral degree at Ohta Lab as the 1st one, he was hired as a JSPS Research Fellow. He will perform a lot of good research at Jiangsu University.

Takaki Onozato received his Ph.D. (2020.3.25). 

12th International Workshop on Oxide Surfaces (IWOX-XII), Jan 5 – 10, 2020, Hosted at Crowne Plaza Lake Placid, NY USA 

The 3rd Workshop on Functional Materials Science (2019.12.18-20) 

Group photo (November 27, 2019) 

Welcome party (Mr. OKURA, Takuma, Mr. KWON, Youngha, Mr. YOSHIDA, Kengo) + celebration of recent presentation awards (November 22, 2019) 

26th International Workshop on Oxide Electronics, Sep.29 – Oct.2, 2019, Kyoto, Japan 

One day trip to Syakotan (Sea urchin donburi & Cape Kamui) and Otaru (Otaru Winery) (July 6th, 2019) 

Seminar: Prof. Norbert Koch(Humboldt-Universität zu Berlin) http://www-sms2.physik.hu-berlin.de//

LINK

Yu-qiao Zhang received his Ph.D. today (2019.3.25) He attended the graduation ceremony as the representative student and he received an award from the dean of the division of Information Science and Technology. 

Prof. Yu-Miin Sheu (National Chiao Tung University, Taiwan) visited our lab. (2019.1.9) 

Enjoyed Skiing & Snowboarding in Sapporo Kokusai Snow Resort (2018.2.18)

Farewell ceremony of the Secretary, Ms. Yoshida. (30 September, 2016) 

2016 member (13 May, 2016) 

Prof. Norbert Koch (Humboldt-Universität zu Berlin, Germany) and Prof. Steffen Duhm (Soochow University, China) visited us (2016.4.1). 

Farewell party for Mr. Kenji ENDO and Dr. Shota KATAYAMA (2016.3.24)

RIES festival (6 June, 2015)

2015 member (8 April, 2015) 

Ski & snowboading at SAPPORO KOKUSAI. (28 Feb. 2015)

We organized The 1st Korea-Japan Bilateral Workshop on Functional Materials Science -Thermoelectrics, Spintronics, Low-dimensional Materials, and Soft Matter- in RIES, Hokkaido University on 1st August, 2014.

Workshop date: 1st August, 2014
Workshop venue: RIES, Hokkaido University, N20W10, Kita, Sapporo 001-0020, Japan
Language: English

Farewell party of our postdoc researcher, Dr. Ning Li & “BONENKAI 2013”, which is a party where we say farewell to the past year.(20 Dec. 2013) 

Prof. Anke Weidenkaff (Universität Stuttgart) stopped at our laboratory (December 9th, 2013). 

We did fly fishing as the lab recreation. We went to Kiroro to see the autumn foliage as well. (6 October, 2013) 

Sea urchin bowl tour [Kamui Cape] (30 June, 2013) 

RIES festival (8 June, 2013) 

2013 member (8 April, 2013) 

An emergency maintenance of our excimer laser, COMPex 120, has been finished at the end of last year. After that we have started thin film growth. Growth condition of super ITO, ZnO and SrTiO3 has been optimized. (January, 2012)