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Paper Abstract and Keywords
Presentation 2022-08-09 13:50
Development of high quality factor HTS bulk coil and its application to Wireless Power Transfer system
Natsuka Oshimoto, Keita Sakuma, Naoto Sekiya (Yamanashi Univ.) SCE2022-8
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, we proposed the method that decrease the resonant frequency (f0) of high temperature superconductor (HTS) bulk coil by the thickness of sapphire substrates which supported HTS bulk coil because there is limit to diameter of HTS bulk. We fabricated HTS bulk coil (coil diameter of 65 mm) which optimized line width and line gap of coil. The measured quality factor of it was 9,431, this was 12 times higher than that of copper coil. Moreover, at distance between coils of 20 cm, a power transfer efficiency of wireless power transfer (WPT) system using HTS bulk coil and copper coil as transmitting and receiving coil were 74.8% and 20.6%, respectively. As a result, we achieved high transfer efficiency WPT system using high quality factor HTS bulk coil.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless power transfer / high temperature superconductor / superconducting bulk / high quality factor coil / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 150, SCE2022-8, pp. 39-42, Aug. 2022.
Paper # SCE2022-8 
Date of Issue 2022-08-02 (SCE) 
ISSN Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SCE  
Conference Date 2022-08-09 - 2022-08-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SCE 
Conference Code 2022-08-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of high quality factor HTS bulk coil and its application to Wireless Power Transfer system 
Sub Title (in English)  
Keyword(1) wireless power transfer  
Keyword(2) high temperature superconductor  
Keyword(3) superconducting bulk  
Keyword(4) high quality factor coil  
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1st Author's Name Natsuka Oshimoto  
1st Author's Affiliation Yamanashi University (Yamanashi Univ.)
2nd Author's Name Keita Sakuma  
2nd Author's Affiliation Yamanashi University (Yamanashi Univ.)
3rd Author's Name Naoto Sekiya  
3rd Author's Affiliation Yamanashi University (Yamanashi Univ.)
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Speaker Author-1 
Date Time 2022-08-09 13:50:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2022-8 
Volume (vol) vol.122 
Number (no) no.150 
Page pp.39-42 
#Pages
Date of Issue 2022-08-02 (SCE) 


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