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Paper Abstract and Keywords
Presentation 2026-08-07 11:20
Development of High-Efficiency Capacitive Wireless Power Transfer System Using High-Q Superconducting Resonators
Kaito Honma, Keita Sakuma, Naoto Sekiya (Univ. of Yamanashi) SCE2026-6
Abstract (in Japanese) (See Japanese page) 
(in English) Capacitive wireless power transfer (CPT) is shorter transmission distance than inductive power transfer. In this study, a high-Q factor superconducting resonator using previously developed double-sided coated conductor tape was developed to achieve long-distance and high-efficiency power transmission. The coupling coefficient was improved by increasing the distance between adjacent electrode plates to reduce stray capacitance. The measured Q factor of the superconducting resonator was approximately 13 times higher than that of a copper resonator. At a transmission distance of 90 cm, the power transfer efficiency of CPT using the superconducting resonator and CPT using the copper resonator were 86.7%, and 45.8%, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) Capacitive wireless power transfer / High quality factor resonator / High temperature superconductor / Superconducting resonator / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 145, SCE2026-6, pp. 31-35, Aug. 2026.
Paper # SCE2026-6 
Date of Issue 2026-07-31 (SCE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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)
Download PDF SCE2026-6

Conference Information
Committee SCE  
Conference Date 2026-08-07 - 2026-08-07 
Place (in Japanese) (See Japanese page) 
Place (in English) University of Yamanashi 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Superconducting Electronics, etc. 
Paper Information
Registration To SCE 
Conference Code 2026-08-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of High-Efficiency Capacitive Wireless Power Transfer System Using High-Q Superconducting Resonators 
Sub Title (in English)  
Keyword(1) Capacitive wireless power transfer  
Keyword(2) High quality factor resonator  
Keyword(3) High temperature superconductor  
Keyword(4) Superconducting resonator  
Keyword(5)  
Keyword(6)  
Keyword(7)  
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1st Author's Name Kaito Honma  
1st Author's Affiliation University Of Yamanashi (Univ. of Yamanashi)
2nd Author's Name Keita Sakuma  
2nd Author's Affiliation University Of Yamanashi (Univ. of Yamanashi)
3rd Author's Name Naoto Sekiya  
3rd Author's Affiliation University Of Yamanashi (Univ. of Yamanashi)
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Speaker Author-1 
Date Time 2026-08-07 11:20:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2026-6 
Volume (vol) vol.126 
Number (no) no.145 
Page pp.31-35 
#Pages 5 
Date of Issue 2026-07-31 (SCE) 

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