Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

Graduating School 【 display / non-display 】

Graduating School 【 display / non-display 】

• 　

  -

  2003.03

  Oita University   Faculty of Engineering   Graduated

Graduate School 【 display / non-display 】

Graduate School 【 display / non-display 】

• 2011.10

  -

  2013.09

  Tohoku University  Graduate School, Division of Engineering  Doctor's Course  Completed

• 2009.10

  -

  2011.09

  Tohoku University  Graduate School, Division of Engineering  Master's Course  Completed

Campus Career 【 display / non-display 】

Campus Career 【 display / non-display 】

• 2024.04

  -

  Now

  Akita University   Graduate School of Engineering Science   Cooperative Major in Sustainable Engineering   Associate Professor  

• 2022.04

  -

  2024.03

  Akita University   Graduate School of Engineering Science   Cooperative Major in Sustainable Engineering   Lecturer  

• 2019.04

  -

  2022.03

  Akita University   Graduate School of Engineering Science   Department of Mathematical Science and Electrical-Electronic-Computer Engineering   Electrical and Electronic Engineering Course   Lecturer  

• 2013.10

  -

  2019.03

  Akita University   Abolished organization   Department of Electrical and Electronics Engineering   Assistant Professor  

Research Achievements 【 display / non-display 】

Research Achievements 【 display / non-display 】

◆Original paper【 display / non-display 】

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◆Original paper【 display / non-display 】

Study on High Torque IPMSM Using Sm-Fe-N Bonded Magnet

Takeda K., Yoshida Y., Yoshida R., Abe M., Tada S., Yamamoto M., Tajima K.

Transaction of the Magnetics Society of Japan Special Issues ( The Magnetics Society of Japan )  advpub ( 0 )   2024  [Refereed]

Research paper (journal)   Domestic Co-author

DOI CiNii Research

Study on Asymmetric Magnetic Pole Structure for IPM Motor Using Neodymium Bonded Magnet

T. Yanagisawa, Y. Yoshida, K. Tajima

Journal of the Magnetics Society of Japan   44 ( 2 ) 45 - 51   2020.03  [Refereed]

Research paper (journal)   Domestic Co-author

Examination of High-Efficiency Rare Earth Free Motor with Three-Dimensional Magnet Arrangement

H. Saito, Y. Yoshida, K. Tajima

日本磁気学会論文特集号   2 ( 1 ) 37 - 42   2018.05  [Refereed]

Research paper (journal)   Domestic Co-author

Study on Analysis of Torque-Slip Characteristics of Axial Gap Induction Motor

R. Sakai, Y. Yoshida, K. Tajima

日本磁気学会論文特集号   2 ( 1 ) 43 - 47   2018.05  [Refereed]

Research paper (journal)   Domestic Co-author

Recent Topics of Loss Analysis of Power Magnetics Devices based on Equivalent Circuit Method

Nakamura Kenji, Morita Takashi, Yoshida Yukihiro

IEEJ Transactions on Fundamentals and Materials ( The Institute of Electrical Engineers of Japan )  138 ( 12 ) 585 - 591   2018  [Refereed]

Research paper (journal)   Domestic Co-author

<p>Efficiency of power electronics circuit in switching power supply and motor drive system is being improved by developing SiC and GaN semiconductor power devices. On the other hand, power losses of magnetic parts including transformer, reactor, and motor are relatively noticeable. To overcome the above problem, it is necessary to establish a quantitative analysis method for power losses of magnetic devices. This paper introduces three recent topics of loss analysis of magnetic devices based on equivalent circuit method. The first one is an analysis of eddy current loss of Mn-Zn ferrite taking account of microstructure, the second one is a magnetic circuit model incorporating a play model, the last one is eddy current analysis of permanent magnet motor based on electric- and magnetic-coupled network model.</p>

DOI CiNii Research

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◆International conference proceedings【 display / non-display 】

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◆International conference proceedings【 display / non-display 】

Consideration of Asymmetrical Magnetic Pole IPMSM Using Bonded Rare-earth Magnet

Yoshida Y.

23rd International Conference on Electrical Machines and Systems, ICEMS 2020 ( 23rd International Conference on Electrical Machines and Systems, ICEMS 2020 )    720 - 723   2020.11

Research paper (international conference proceedings)   Domestic Co-author

DOI

Demagnetization analysis of ferrite magnet motor based on reluctance network analysis

Momma D.

19th International Conference on Electrical Machines and Systems, ICEMS 2016 ( 19th International Conference on Electrical Machines and Systems, ICEMS 2016 )    2017.01

Research paper (international conference proceedings)   Domestic Co-author

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◆Other【 display / non-display 】

To the head of this page.▲

◆Other【 display / non-display 】

Development Trends in Highly Efficient Energy Conversion Technologies

YOSHIDA Yukihiro, KIMURA Mamoru, KURITA Naoyuki

The Journal of The Institute of Electrical Engineers of Japan ( The Institute of Electrical Engineers of Japan )  143 ( 11 ) 706 - 709   2023.11

DOI CiNii Research

Prototype Test of Asymmetric Pole Structure IPM Motor Using Bonded Magnet

Tsukada Y., Yoshida Y., Handa N., Tajima K.

Transaction of the Magnetics Society of Japan Special Issues ( The Magnetics Society of Japan )  7 ( 1 ) 73 - 79   2023.05

DOI CiNii Research

Calculation for Output Characteristic of Motor Structure with Boost Reactor Function Based on RNA

Zhang L., Yoshida Y., Sakurai S., Handa N., Tajima K.

Transaction of the Magnetics Society of Japan Special Issues ( The Magnetics Society of Japan )  advpub ( 0 )   2023

DOI CiNii Research

Study on Design Method of Axial Gap Induction Motor

Terui T., Yoshida Y., Tajima K.

Transaction of the Magnetics Society of Japan Special Issues ( The Magnetics Society of Japan )  6 ( 1 ) 74 - 80   2022.05  [Refereed]

DOI CiNii Research

End-conduction assisted induction heating of carbon-fiber commingled knit

TAKIBUCHI Kodai, YOSHIDA Yukihiro, KAMO Sota, TAKAGI Kiyoka, MURAOKA Mikio

The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2019 ( 0 ) J04408P   2019

DOI CiNii Research

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

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

• Grant-in-Aid for Scientific Research(C)

  Project Year： 2019.04  -  2022.03  Investigator(s): Yukihiro Yoshida

• Grant-in-Aid for Young Scientists(B)

  Project Year： 2014.04  -  2017.03  Investigator(s): Yukihiro Yoshida

Presentations 【 display / non-display 】

Presentations 【 display / non-display 】

• RM-19-152

  2019.10  -  2019.10 

• End-conduction assisted induction heating of carbon-fiber commingled knit

  TAKIBUCHI Kodai, YOSHIDA Yukihiro, KAMO Sota, TAKAGI Kiyoka, MURAOKA Mikio

  The Proceedings of Mechanical Engineering Congress, Japan  2019  -  2019  The Japan Society of Mechanical Engineers

  <p>We work on a thermoforming technique of carbon-fiber reinforced thermoplastic (CFRTP) using induction heating, with commingled knit as intermediate material. Commingled knit has unidirectional carbon fiber, so even if an alternating magnetic field is applied, it does not generate heat by itself. In this study, induction heating by conducting the end of the commingled knit is used to heat the carbon fiber itself. In addition, commingled knit laminates are tested under the end-conduction assisted induction heating. The experiment showed that the temperature could be raised to the melting temperature of the thermoplastic resin only by the heat generation of the commingled knit. Furthermore, it showed that the heat generation efficiency is improved by laminating commingled knit. These results confirmed that, this technique is capable of forming only with heat generation of commingled knit, it can be expected to a low-cost thermoforming technique of CFRTP.</p>

  DOI

• RM-17-121 Study of Asymmetrical Magnetic Poles Flux Intensifying IPM Motor Using Bonded Neodymium Magnet

  2017.11  -  2017.11 

• MAG-17-024

  2017.02  -  2017.02 

• MAG-17-024

  2017.02  -  2017.02 

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