Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, AP, UWT (Joint) |
2022-11-17 15:25 |
Fukuoka |
Kyushu University, and Online (Primary: On-site, Secondary: Online) |
Wideband design of a single-layer dual-band multi-ring microstrip antenna fed by an L-probe Masaya Takahashi, Sakuyoshi Saito, Yuichi Kimura (Saitama Univ.) AP2022-172 |
This paper presents wideband design of a single-layer dual-band multi-ring microstrip antenna (MR-MSA) fed by an L-probe... [more] |
AP2022-172 pp.139-144 |
QIT (2nd) |
2021-12-01 09:00 |
Online |
Online |
Direct measurement of matrix elements of density-, process- and measurement-matrices using diagrammatic representation Masaya Takahashi (Hokkaido Univ.), Kazuhisa Ogawa (Osaka Univ.), Akihisa Tomita (Hokkaido Univ.) |
Quantum systems are characterized by density operators for the states, process operators for the time evolution, and POV... [more] |
|
EE, IEE-SPC (Joint) |
2021-03-01 15:50 |
Online |
Online |
A Multiport Bi-Directional On-Board Charger Combined with Isolated Current-Resonant Converter and Buck Converters Ryo Oishi, Kimihiro Nishijima, Sakai Eiji (Sojo Univ.), Keisuke Tani, Nobuhisa Yamaguchi, Masaya Takahashi, Yusei Nakayashiki (DENSO) EE2020-42 |
A multi-output bi-directional isolated DC-DC converter for charging main battery and sub-batteries of electric vehicle i... [more] |
EE2020-42 pp.13-18 |
EE, IEE-SPC, IEE-EDD (Joint) |
2017-11-21 10:45 |
Kagoshima |
Kagoshima Univ. |
Experimental Verification of Current Sensorless ZVS Assist Control Based on Voltage Transition Waveform Masaya Takahashi, Nobuhisa Yamaguchi, Eisuke Takahashi, Kazuyoshi Obayashi (DENSO), Kimihiro Nishijima (Oita Univ.) EE2017-41 |
The main cause of an efficiency degradation in a DC to DC converter is a switching loss. ZVS assist circuit is known as ... [more] |
EE2017-41 pp.33-38 |
EE |
2016-01-28 15:20 |
Fukuoka |
KURUME HOTEL ESPRIT |
A Input Connection Type Magnetically Coupled ZVS Assistance Circuit Kimihiro Nishijima, Kenta Teshima (Oita Univ), Masaya Takahashi, KeisukeTani (Denso) EE2015-10 |
[more] |
EE2015-10 pp.7-12 |
EE |
2011-10-07 16:00 |
Chiba |
Makuhari-Messe |
A High Efficiency High Power Density AC-DC Converter with Holdup time Extension Capability Masaya Takahashi, Kimihiro Nishijima, Terukazu Sato, Takashi Nabeshima (OitaUniv.) EE2011-22 |
This paper proposes a two-phase PFC circuit for keeping a constant output-voltage even under holdup time. The proposed c... [more] |
EE2011-22 pp.23-29 |
OME |
2011-09-22 13:55 |
Osaka |
Osaka City Central Public Hall |
Swept-wavelength tunable laser in liquid crystal film possessing helical order Yo Inoue, Hiroyuki Yoshida, Kenta Inoue, Yusuke Shiozaki, Masaya Takahashi, Akihiko Fujii, Masanori Ozaki (Osaka Univ.) OME2011-41 |
Wavelength-swept lasing is demonstrated by using a cholesteric liquid crystal film dispersed with liquid crystal droplet... [more] |
OME2011-41 pp.5-8 |
EE, CPM |
2011-02-10 14:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Electrochemical properties of ramsdellite-type lithium titanium oxides as negative electrode material for lithium secondary batteries Elly Setiawati, Masahiko Hayashi, Masaya Takahashi, Takahisa Shodai, Keiichi Saito (NTT Corp.) EE2010-45 CPM2010-139 |
The development of lithium secondary battery for backup power application is being focused mainly on the safety and capa... [more] |
EE2010-45 CPM2010-139 pp.19-23 |
EE |
2010-10-08 11:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Light Load Efficiency Improvement Technique by using MOSFET driver Masaya Takahashi, Kimihiro Nishijima, Michihiko Nagao, Terukazu Sato, Takashi Nabeshima (Oita Univ.) EE2010-19 |
A novel light load efficiency improvement technique have been proposed by previous reports. In this technique, during th... [more] |
EE2010-19 pp.21-26 |
EE |
2009-11-27 13:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Hybrid Converter for Improving Light Load Efficiency Masaya Takahashi, Kimihiro Nishijima, Terukazu Sato, Takashi Nabeshima (Oita Univ), Koosuke Harada (Sojyo Univ) EE2009-33 |
In order to improve efficiencies of stand-by mode,idling mode and sleep mode of the electronic equipment,an efficiency i... [more] |
EE2009-33 pp.25-29 |
EE, IEE-IEA |
2008-05-09 10:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Electrochemical Properties of Thin-Film Lithium Secondary Batteries Using Positive LiCoO2 Films Prepared by ECR Sputtering Method Masahiko Hayashi, Masaya Takahashi, Takahisa Shodai (NTT) |
Well-crystallized positive LiCoO2 films for thin-film lithium secondary batteries were obtained without a post-annealing... [more] |
EE2008-1 pp.1-6 |
CPM, EE |
2007-03-02 13:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg |
Development of All-Solid-State Thin-Film Lithium Secondary Batteries Masahiko Hayashi, Masaya Takahashi, Yoji Sakurai, Takahisa Shodai (NTT) EE2006-64 CPM2006-157 |
All-solid-state thin-film lithium secondary batteries are expected as power sources of small-sized and ultra-thin electr... [more] |
EE2006-64 CPM2006-157 pp.15-20 |
CAS |
2006-01-11 14:00 |
Miyazaki |
|
Score Sequence Pair Problems of (r11,r12,r22)-Tournaments
-- Construction -- Masaya Takahashi (Fukuoka Inst. of Tech./Waseda Univ), Takahiro Watanabe, Takeshi Yoshimura (Waseda Univ) |
Let G be any graph with the property P (for example, general graph, directed graph, etc.) and S be nonnegative and non-d... [more] |
CAS2005-70 pp.1-6 |
COMP |
2005-01-28 16:10 |
Aichi |
Nagoya University |
Score Sequence Pair Problems of (r11,r12,r22)-Tournaments
-- Determination -- Masaya Takahashi (Fukuoka Inst. of Tech./Waseda Univ.), Takahiro Watanabe, Takeshi Yoshimura (Waseda Univ.) |
[more] |
COMP2004-72 pp.97-106 |