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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMCJ | 2022-06-10 11:00 |
Hokkaido | Hokkaido University (Primary: On-site, Secondary: Online) |
Evaluation of External Disturbance Immunity by Bulk Current Injection into Ethernet Communication System(2) Kohei Kawai, Takuya Wadatsumi (Kobe Univ.), Ken Okamoto, Yuichiro Okugawa (NTT), Takuji Miki, Makoto Nagata (Kobe Univ.)  EMCJ2022-18 |
[more] | EMCJ2022-18 pp.21-25 |
| EMCJ | 2022-01-21 11:20 |
Online | Online | Evaluation of External Disturbance Immunity by Bulk Current Injection into Ethernet Communication System Kohai Kawai, Takuya Wadatsumi, Akira Tsukada (Kobe Univ.), Ken Okamoto, Yuichiro Okugawa (NTT), Takuji Miki, Makoto Nagata (Kobe Univ.) EMCJ2021-64 |
We developed a model of communication failures caused by external disturbances in Ethernet and collected experimental da... [more] | EMCJ2021-64 pp.18-22 |
| EMCJ, WPT (Joint) |
2018-06-14 13:35 |
Nagasaki | Experimental validation for waveform model of conducted disturbances below 150 kHz from power conversion equipment Farhan Mahmood, Yuichiro Okugawa, Jun kato (NTT) EMCJ2018-11 |
International Electrotechnical Commission (IEC) specifies conducted immunity test wave as continuous wave (CW) in IEC 61... [more] | EMCJ2018-11 pp.1-6 |
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| MW, EMCJ, EST, IEE-EMC [detail] | 2017-10-19 15:20 |
Akita | Yupopo | Waveform modeling of conducted disturbances below 150 kHz from rectifiers Farhan Mahmood, Ken Okamoto, Yuichiro Okugawa, Jun Kato (NTT) EMCJ2017-37 MW2017-89 EST2017-52 |
(To be available after the conference date) [more] | EMCJ2017-37 MW2017-89 EST2017-52 pp.61-65 |
| PRMU, IE, MI, SIP | 2017-05-25 14:40 |
Aichi | Local linear predictive coding for characterizing electro-magnetic noise Fumihiko Ishiyama, Yuichiro Okugawa, Yoshiharu Akiyama (NTT) SIP2017-9 IE2017-9 PRMU2017-9 MI2017-9 |
We are investigating methods of characterizing electric noise to identify the source of the electric noise. For the purp... [more] | SIP2017-9 IE2017-9 PRMU2017-9 MI2017-9 pp.49-54 |
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| EMCJ | 2017-04-14 14:05 |
Tokyo | NTT Musashino R&D Center | Feature extraction of conducted disturbance below 150 kHz from power conversion equipment Farhan Mahmood, Ken Okamoto, Fumihiko Ishiyama, Yuichiro Okugawa, Yoshiharu Akiyama (NTT) EMCJ2017-1 |
[more] | EMCJ2017-1 pp.1-6 |
| EMCJ | 2017-04-14 14:30 |
Tokyo | NTT Musashino R&D Center | Method of transient signal analysis and its application to switching noise Fumihiko Ishiyama, Farhan Mahmood, Yuichiro Okugawa, Yoshiharu Akiyama (NTT) EMCJ2017-2 |
We are investigating methods of characterizing electric noise to identify the source of the electric noise. For the purp... [more] | EMCJ2017-2 pp.7-12 |
| CAS, ICTSSL | 2017-01-27 11:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Characterizing and modeling of switching power supply noise Fumihiko Ishiyama, Farhan Mahmood, Yuichiro Okugawa, Kazuhiro Takaya (NTT) CAS2016-104 ICTSSL2016-58 |
We are investigating methods of countermeasure against electric noise on telecommunication lines and on power lines. Swi... [more] | CAS2016-104 ICTSSL2016-58 pp.127-132 |
| EMCJ | 2016-05-13 13:20 |
Hokkaido | Hokkaido University | LCL Measurement Method Based on Equivalent Circuit Modeling Tohlu Matsushima (Kyoto Univ.), Kazuhiro Takaya, Yuichiro Okugawa, Ken Okamoto (NTT), Akira Sugiura, Osami Wada (Kyoto Univ.) EMCJ2016-12 |
In order to measure LCL (longitudinal conversion loss) of an equipment under test (EUT) or a circuit with high symmetry,... [more] | EMCJ2016-12 pp.17-22 |
| EMCJ, WPT (Joint) |
2016-01-29 09:50 |
Kumamoto | Kumamoto National Colle. Technology | Study on test distance between EUT and antenna for radiated immunity test in close proximity to equipment Kazuhiro Takaya, Naomichi Nakamura, Yuichiro Okugawa, Yoshiharu Hiroshima (NTT) EMCJ2015-116 |
IEC Technical Committee TC77 Subcommittee SC77B studies a radiated immunity test in close proximity to equipment as an I... [more] | EMCJ2015-116 pp.71-75 |
| EMCJ, WPT (Joint) |
2016-01-29 10:15 |
Kumamoto | Kumamoto National Colle. Technology | Study on test signal for radiated immunity test in close proximity to equipment Naomichi Nakamaura, Yuichiro Okugawa, Yoshiharu hiroshima, Kazuhiro Takaya (NTT) EMCJ2015-117 |
[more] | EMCJ2015-117 pp.77-81 |
| EMCJ, WPT (Joint) |
2015-01-23 15:50 |
Okinawa | Okinawaken Ｊichikaikan | Study on detection method for clock error due to intentional electromagnetic interference Atsushi Nagao, Yuichiro Okugawa, Kazuhiro Takaya (NTT), Yu-ichi Hayashi, Naofumi Homma, Takafumi Aoki (Tohoku Univ.) EMCJ2014-100 |
Overclocking, which occurs because of the disruption of the clock frequency, causes LSI modules to malfunction. The Elec... [more] | EMCJ2014-100 pp.83-88 |
| EMCJ | 2014-04-18 13:30 |
Toyama | Univ. Toyama | Evaluation of voltage between signal line and ground line generated by near-EM disturbance Atsushi Nagao, Farhan Zaheed Mahamood, Yuichiro Okugawa, Shin Kanno, Kazuhiro Takaya (NTT) EMCJ2014-2 |
Because of the increased demand for using wireless devices near from communication equipments, establishing the RF immun... [more] | EMCJ2014-2 pp.7-12 |
| EMCJ, WPT (Joint) |
2014-01-31 16:10 |
Saga | Saga Univ. | Investigation of CDN with Transformer Used below 150 kHz Nobuo Kuwabara, Hiromu Okumura (Kyushu Inst. of Tech.), Yuichiro Okugawa, Kazuhiro Takaya, Yoshiharu Akiyama (NTT) EMCJ2013-130 |
Progress of energy saving mind makes a force employing electrical equipment with inverter and converter circuits. The pr... [more] | EMCJ2013-130 pp.111-116 |
| ASN, MoNA (Joint) |
2014-01-24 09:25 |
Ehime | Hotel Okudogo (Matsuyama) | Experimental Evaluation of Interference Avoidance between Wireless LAN and ZigBee Ryosuke Murata, Yosuke Takaki, Masakatsu Ogawa (Sophia Univ.), Yuichiro Okugawa, Kazuhiro Takaya, Yoshiharu Akiyama (NTT) MoNA2013-57 |
[more] | MoNA2013-57 pp.49-53 |
| ASN, MoNA (Joint) |
2014-01-24 12:05 |
Ehime | Hotel Okudogo (Matsuyama) | [Technology Exhibit]
Experiments on Interference Avoidance method between Wireless LAN and ZigBee Yosuke Takaki, Ryosuke Murata, Masakatsu Ogawa (Sophia Univ), Yuichiro Okugawa, Kazuhiro Takaya, Yoshiharu Akiyama (NTT) MoNA2013-65 |
[more] | MoNA2013-65 pp.93-94 |
| EMCJ | 2013-11-22 15:50 |
Tokyo | Tokyo Denki Univ. | Influence on Telecommunication and Mains ports of VDSL Telecommunication Equipment from Injected Disturbances Hiromu Okumura, Nobuo Kuwabara (KIT), Yoshiharu Akiyama, Yuichiro Okugawa (NTT) EMCJ2013-97 |
[more] | EMCJ2013-97 pp.35-40 |
| EMCJ | 2013-09-13 10:35 |
Hokkaido | Hokkaido Univ. | A study on electromagnetic interference to telecommunication equipment due to WiFi radio waves Norihito Hirasawa, Ken Okamoto, Hidenori Itou, Masashi Takahashi (NTT East), Yuichiro Okugawa, Yoshiharu Akiyama (NTT), Kazuo Murakawa (NTT East) EMCJ2013-49 |
Wireless communication services can be used at various places by development of wireless communication technologies. To ... [more] | EMCJ2013-49 pp.1-5 |
| EMCJ, EMD | 2013-07-12 15:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Analysis of high-frequency components in electrostatic discharge events
-- Assessing the effect of discharge electrode material and relative humidity -- Masao Masugi (Ritsumeikan Univ.), Yuichiro Okugawa, Yoshiharu Akiyama (NTT), Kazuo Murakawa (NTT East) EMCJ2013-47 EMD2013-32 |
This report describes evaluations of electrostatic discharge (ESD) events from electromagnetic interference (EMI) aspect... [more] | EMCJ2013-47 EMD2013-32 pp.43-46 |
| EMCJ | 2012-09-07 14:35 |
Hokkaido | Hkkaido Univ. | Experimental Studies of separation between telecom signal and noise of common mode noise Yasunori Ogura, Kei Tominaga (NTT EAST), Yuichiro Okugawa (NTT), Hidenori Itou, Kazuo Murakawa (NTT EAST) EMCJ2012-58 |
[more] | EMCJ2012-58 pp.35-40 |
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