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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PEM (Workshop) |
2023-11-27 - 2023-11-28 |
Hokkaido | Hokkaido Univ. Frontier Research in Applied Sciences Building | Interference-Induced Voltage Measurement for EMI Assessment of Implantable Medical Devices by Exposure to 5G Frequency Radio Wave using Electro-Optical Converter Funa Tsumura, Shuhei Waki, Takashi Hikage (Hokkaido Univ.), Yoshitoshi Tochikura, Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT DOCOMO INC.) |
To investigate the interference implications in the micro/millimeter wave bands of the increasingly popular 5G technolog... [more] | |
| MW, EMCJ, EST, IEE-EMC [detail] | 2023-10-20 11:10 |
Yamagata | Yamagata University (Primary: On-site, Secondary: Online) |
Evaluation of Simultaneous Exposure at Millimeter Wave Bands Frequencies Yuta Minamimoto, Sachiko Kodera (NITech), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT DOCOMO), Akimasa Hirata (NITech)  EMCJ2023-62 MW2023-116 EST2023-89 |
In the ICNIRP guideline and IEEE standards, the specific absorption rate averaged over 10-g tissue (10gSAR) is used as a... [more] | EMCJ2023-62 MW2023-116 EST2023-89 pp.137-140 |
| EMCJ | 2023-01-27 09:40 |
Okayama | WASHU BLUE RESORT (Primary: On-site, Secondary: Online) |
Interference Voltage Measurement for EMI Evaluation of Active Implantable Medical Devices by Exposure to 4G and 5G Frequency Radio Waves using Electro-Optical Converter Takuji Nishikawa, Takashi Hikage (Hokkaido Univ.), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT DOCOMO) EMCJ2022-74 |
[more] | EMCJ2022-74 pp.12-16 |
| EST | 2023-01-27 15:10 |
Okinawa | (Primary: On-site, Secondary: Online) |
Assessment of Simultaneous Exposure of Human at Multiple Frequencies below and above 6 GHz Norika Miura, Sachiko Kodera (NITech), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTTdocomo), Akimasa Hirata (NITech) EST2022-101 |
The temperature rise in human body is a dominant factor that cause adverse health effects exposed to microwaves at frequ... [more] | EST2022-101 pp.133-136 |
| EMCJ | 2022-06-10 13:00 |
Hokkaido | Hokkaido University (Primary: On-site, Secondary: Online) |
Estimation of Exposure Polarization Dependent Characteristics of Active Implantable Medical Device EMI in 5G Sub-6 Frequency Band Takuji Nishikawa, Takashi Hikage (Hokkaido Univ.), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT DOCOMO) EMCJ2022-20 |
[more] | EMCJ2022-20 pp.30-33 |
| EST | 2022-01-27 13:00 |
Online | Online | FEM Simulation of induced interference voltage of implantable medical devices near dipole and slot antennas in 5G sub6 frequency band Ohtsuka Atsuki, Takuji Nishikawa, Takashi Hikage (Hokkaidou Univ), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT docomo) EST2021-63 |
This paper describes a numerical assessment of implantable medical devices (implantable cardiac pacemaker/implantable de... [more] | EST2021-63 pp.32-37 |
| EST | 2022-01-27 16:10 |
Online | Online | Compliance Assessment of Human Body for Local Exposures at Multiple Frequencies Norika Miura, Sachiko Kodera (NITech), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT DOCOMO), Akimasa Hirata (NITech) EST2021-72 |
Temperature rise in human body is a dominant effect for exposure at frequencies higher than 100 kHz. In the internationa... [more] | EST2021-72 pp.75-78 |
| EST, MW, EMCJ, IEE-EMC [detail] | 2021-10-07 14:55 |
Online | Online | Estimation of interference-induced voltage at implantable medical devices due to near fields excited by slot antenna Atsuki Ohtsuka, Takashi Hikage (Hokkaido Univ.), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (DoCoMo) EMCJ2021-35 MW2021-47 EST2021-37 |
[more] | EMCJ2021-35 MW2021-47 EST2021-37 pp.40-43 |
| WPT | 2018-03-03 15:30 |
Kyoto | Kyoto Univ. Uji Campus | Temperature Increase on Implantable Medical Device Inside Human Body Due to External Electromagnetic Waves
-- HF-WPT and 5G Cellular Frequency Bands -- Takashi Hikage, Ryuhei Daikatsu (Hokkaido Univ.), Takahiro Iyama, Teruo Onishi (NTT DOCOMO) WPT2017-89 |
[more] | WPT2017-89 pp.105-108 |
| MWP, OPE, EMT, MW, EST, IEE-EMT [detail] | 2017-07-21 09:25 |
Hokkaido | Obihiro Chamber of Commerce and Industry | Relationship between Incident Power Density and Temperature Elevation in the Human Body from Patch Antenna Array Daisuke Funahashi, Takahiro Ito, Akimasa Hirata (NIT), Takahiro Iyama, Teruo Onishi (NTT DOCOMO) EMT2017-22 MW2017-47 OPE2017-27 EST2017-24 MWP2017-24 |
The 5th generation wireless system (5G) has been attracting much attention. The frequency range higher than 6 GHz is pla... [more] | EMT2017-22 MW2017-47 OPE2017-27 EST2017-24 MWP2017-24 pp.85-88 |
| EMCJ, WPT, PEM (Joint) |
2016-11-24 14:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Exposure assessment close to antennas above 6 GHz Teruo Onishi, Takahiro Iyama (NTT DOCOMO), Akimasa Hirata (NIT) EMCJ2016-87 |
Exposure assessment close to 1 and 25 elements patch antennas above 6 GHz is investigated using an electromagnetic simul... [more] | EMCJ2016-87 pp.19-22 |
| AP, MW (Joint) |
2016-09-15 15:20 |
Ibaraki | AIST | [Invited Lecture]
Measurement Set-up of Interference Voltage in Cellular Band Using an Electro-Optic Converter for Implantable Cardiac Pacemaker EMI Assessment Naoki Tanaka, Takashi Hikage, Toshio Nojima (Hokkaido Univ.), Takahiro Iyama, Teruo Onishi (NTT DOCOMO, INC.) AP2016-96 MW2016-78 |
[more] | AP2016-96 MW2016-78 pp.43-46(AP), pp.27-30(MW) |
| EST | 2016-09-08 16:10 |
Okinawa | Ishigakishi-Shoko-Kaikan | Time Constant of Temperature Elevation in the Human Body Models Due to Dipole Antenna Ryota Morimoto, Sachiko Kodera, Akimasa Hirata (NIT), Takahiro Iyama, Teruo Onishi (NTT DOCOMO) EST2016-45 |
[more] | EST2016-45 pp.211-214 |
| EMCJ | 2015-11-13 11:25 |
Kanagawa | Mitsubishi Electric Corporation | Specific Absorption Rate Measurement for Base Station Antennas Takahiro Iyama, Teruo Onishi, Yoshiaki Tarusawa (NTT DOCOMO), Lira Hamada, Soichi Watanabe (NICT) EMCJ2015-83 |
The SAR (Specific Absorption Rate) measurement procedure is mainly used for mobile handsets and so on. Applicability of ... [more] | EMCJ2015-83 pp.13-17 |
| OFT, PEM (Joint) |
2015-05-22 11:10 |
Ishikawa | Measurement Set-up Using an Electro-Optic Converter for Interference Voltage of Active Implantable Medical Devices EMI Assessment Naoki Tanaka, Takashi Hikage, Toshio Nojima (Hokkaido Univ.), Takahiro Iyama, Junji Higashiyama, Teruo Onishi (NTT DOCOMO, INC.) |
(Advance abstract in Japanese is available) [more] | ||
| EMCJ, IEE-EMC | 2010-12-10 11:55 |
Aichi | Chukyo Univ. Toyoda Campus | SAR variations of data communication wireless terminals caused by host devices Takahiro Iyama, Teruo Onishi (NTT DOCOMO) EMCJ2010-88 |
SAR (Specific absorption rate) measurement procedure for wireless communication devices used in close proximity to the h... [more] | EMCJ2010-88 pp.41-44 |
| EMCJ | 2010-07-15 13:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Evaluation Method for EMI of an Implanted Device by Wireless Devices Using Near-field EMF Satoshi Ishihara, Takahiro Iyama, Teruo Onishi, Yoshiaki Tarusawa (NTT DOCOMO) EMCJ2010-25 |
The objective of this study is to establish electromagnetic interference (EMI) evaluation techniques for wireless device... [more] | EMCJ2010-25 pp.21-26 |
| AP | 2010-01-22 12:30 |
Yamaguchi | Yamaguchi University | SAR and Temperature Elevation Evaluation Using Japanese Anatomical Human Models for Body-Worn Devices Teruo Onishi, Takahiro Iyama (NTT DoCoMo), Lira Hamada, Soichi Watanabe, Akimasa Hirata (NICT) AP2009-173 |
10g average SAR (Specific Absorption Rate) and temperature evaluation are investigated using the Japanese numerical anat... [more] | AP2009-173 pp.105-108 |
| EMCJ | 2008-09-26 16:45 |
Osaka | Osaka Univ. | SAR measurement procedure for simultaneous multi-band transmission assessment and SAR evaluation method for low power transmitter. Takahiro Iyama, Teruo Onishi (DOCOMO) EMCJ2008-58 |
SAR (Specific Absorption Rate) measurement of a radio device that can simultaneously transmits in multi-frequency might ... [more] | EMCJ2008-58 pp.49-54 |
| EMCJ | 2007-11-15 13:35 |
Tokyo | Tokyo Instutute of Technology | Fast SAR measurement method based on the theoretical SAR estimation and probe array Katsuki Kiminami, Takahiro Iyama, Teruo Onishi (NTT DoCoMo, Inc.) EMCJ2007-80 |
The compliance test procedures for Specific Absorption Rate (SAR) measurement with respect to mobile wireless terminals ... [more] | EMCJ2007-80 pp.1-6 |
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