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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2024-03-15 10:25 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
A Study on Path loss characteristics estimation methods considering geographical conditions for designing narrowband DR-IoT communication system Takato Ikegame, Naoki Ikeda, Motonari Imai, Tetsushi Ikegami (Meiji Univ.), Mineo Takai (Osaka Univ.), Susumu Ishihara (Shizuoka Univ.), Arata Kato, Shugo Kajita (STE)  AP2023-212 |
A versatile variable-range IoT communication system using the VHF-High band, Diversified-Range IoT (DR-IoT) is being con... [more] | AP2023-212 pp.63-67 |
| AP | 2024-03-15 13:00 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
A Study on K-factor estimation accuracy using momentum method for designing narrowband IoT communication system DR-IoT Naoki Ikeda, Motonari Imai, Takato Ikegame, Tetsushi Ikegami (Meiji Univ.), Susumu Ishihara (Shizuoka Univ.), Arata Kato, Syugo Kajita (スペースタイムエンジニアリング), Hiroshi Yamamoto (Ritsumeikan Univ.), Mineo Takai (Osaka Univ.) AP2023-215 |
A versatile variable-range IoT communication system using the VHF-high band， Diversified-Range IoT (DR-IoT)is being cons... [more] | AP2023-215 pp.80-84 |
| SIS | 2024-03-14 14:50 |
Kanagawa | Kanagawa Institute of Technology (Primary: On-site, Secondary: Online) |
Improvement of Detection Accuracy for Detection of Calcification Regions in Dental Panoramic Radiographs Using LVAT Naoki Ikeda, Sei Takano, Mitsuji Muneyasu, Soh Yoshida, Akira Asano (Kansai Univ.), Nanae Dewake, Nobuo Yoshinari (Matsumoto Dental Univ.), Keiichi Uchida (Matsumoto Dental Univ. Hospital) SIS2023-50 |
Carotid arteries on dental panoramic radiographs may show areas of calcification, a sign of vascular disease. The sudden... [more] | SIS2023-50 pp.27-32 |
| SeMI | 2024-01-18 15:35 |
Yamanashi | Raki House Kaiji | [Poster Presentation]
A Study on Packet Transmission Timing for Dynamic Management of Nodes in Narrowband DR -loT Communication System Motonari Imai, Takato Ikegame, Naoki Ikeda, Tetsushi Ikegami (Meiji Univ.), Susumu Ishihara (Shizuoka Univ.), Arata Kato (STE), Mineo Takai (Osaka Univ.) SeMI2023-59 |
The institutionalization of Diversified-Range IoT (DR-IoT), a versatile variable-range IoT communication system using th... [more] | SeMI2023-59 pp.51-55 |
| MIKA (3rd) |
2023-10-11 14:30 |
Okinawa | Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Field experiment on mobile radio propagation characteristics in the VHF-High band
-- Path loss and Fading characteristics -- Naoki Ikeda, Motonari Imai, Takato Ikegame, Tetsushi Ikegami (Meiji Univ.), Susumu Ishihara (Shizuoka Univ.), Hiroshi Yamamoto (Ritumeikan Univ.), Arata Kato, Syugo Kajita, Mineo Takai (STE) |
In the VHF-High band (207.5 MHz to 222 MHz), the DR-IoT (Diversified-Range/Disaster-Response IoT), a quasi-narrow-band w... [more] | |
| MIKA (3rd) |
2023-10-11 14:30 |
Okinawa | Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Field experiments on VHF-High band for design of a quasi-narrow band wireless communication system DR-IoT
-- Path loss characteristics estimation methods considering geographical conditions -- Takato Ikegame, Naoki Ikeda, Motonari Imai, Tetsushi Ikegami (Meiji Univ.), Mineo Takai (Osaka Univ.), Susumu Ishihara (Shizuoka Univ.), Arata Kato, Shugo Kajita (STE) |
In the VHF-High band (207.5 MHz to 222 MHz), research is being conducted on a disaster-response narrowband wireless syst... [more] | |
| MICT, WBS | 2022-07-25 09:30 |
Okayama | Okayama Prefectural University | [Poster Presentation]
Consideration of radio wave attenuation due to shielding in the communication path in 220MHz band and 920MHz band outdoor communication experiments Motonari Imai, Naoki Ikeda, Takato Ikegame, Tetsusi Ikegami (Meiji Univ.) WBS2022-21 MICT2022-21 |
Currently, large-scale disaster response IoT (DR-IoT) using the 220 MHz band is under development. In this paper, we ev... [more] |
WBS2022-21 MICT2022-21 pp.24-29 |
| MICT, WBS | 2022-07-25 10:55 |
Okayama | Okayama Prefectural University | [Poster Presentation]
Consideration of Fading Characteristics on Field Propagation Measurements of 920MHz band and 220MHz band Naoki Ikeda, Motonari Imai, Takato Ikegame, Tetsushi Ikegami (Meiji Univ.) WBS2022-24 MICT2022-24 |
In recent years, damages caused by natural disasters have become a social problem. We are studying a Disaster Response I... [more] | WBS2022-24 MICT2022-24 pp.41-46 |
| MICT, WBS | 2022-07-25 10:55 |
Okayama | Okayama Prefectural University | [Poster Presentation]
Consideration of distance propagation characteristics in 220 MHz and 920 MHz band outdoor communication experiments Takato Ikegame, Naoki Ikeda, Motonari Imai, Takuto Ieda, Tetsushi Ikegami (Meiji Univ.) WBS2022-25 MICT2022-25 |
We will study a model of outdoor radio propagation characteristics in the wide-area VHF band that can be used in a quasi... [more] | WBS2022-25 MICT2022-25 pp.47-52 |
| SDM | 2018-06-25 12:00 |
Aichi | Nagoya Univ. VBL3F | Influence of native oxide layer on electrical characteristics of Al2O3/n-GaN capacitors Kazuya Yuge (SIT), Toshihide Nabatame, Yoshihiro Yoshikawa, Akihiko Ohi, Naoki Ikeda, Liwen Sang, Yasuo Koide (NIMS), Tomoji Ohishi (SIT) SDM2018-19 |
In this study, the effects of the native oxide interfacial layer (Ga$_2$O$_3$) on the fixed charge and dipole formation ... [more] | SDM2018-19 pp.15-18 |
| EMT, EST, LQE, MWP, OPE, PEM, PN, IEE-EMT [detail] | 2018-01-25 09:55 |
Hyogo | Low-group-velocity and low-dispersion 2D-GaAs-photonic crystal waveguide for highly efficient terahertz wave generation Teruyuki Nakahama, Nobuhiko Ozaki (Wakayama Univ.), Hisaya Oda (CIST), Naoki Ikeda, Yoshimasa Sugimoto (NIMS) PN2017-39 EMT2017-76 OPE2017-117 LQE2017-99 EST2017-75 MWP2017-52 |
The terahertz (THz)-wave is expected to be applied to various fields, for example, in spectroscopic sensing, nondestruct... [more] | PN2017-39 EMT2017-76 OPE2017-117 LQE2017-99 EST2017-75 MWP2017-52 pp.5-8 |
|
| SDM | 2017-10-26 10:50 |
Miyagi | Niche, Tohoku Univ. | Effect of ZrO2 seed layer on ferroelectricity of HfxZr1-xO2 thin film Takashi Onaya (Meiji Univ./NIMS), Toshihide Nabatame (NIMS/JST), Naomi Sawamoto (Meiji Univ.), Akihiko Ohi, Naoki Ikeda, Toyohiro Chikyow (NIMS), Atsushi Ogura (Meiji Univ.) SDM2017-57 |
The effect of crystallized ZrO2 seed layers, which inserted between a TiN bottom electrode and a ferroelectric HfxZr1-xO... [more] | SDM2017-57 pp.39-44 |
| OPE, EST, LQE, EMT, PN, MWP, IEE-EMT [detail] | 2017-01-19 09:55 |
Mie | Iseshi Kanko Bunka Kaikan | Multi-wavelength near-infrared light source using heterojunction 2D GaAs photonic crystal waveguide with InAs quantum dots Sho Uchida, Nobuhiko Ozaki (Wakayama Univ.), Hisaya Oda (CIST), Naoki Ikeda, Yoshimasa Sugimoto (NIMS) PN2016-64 EMT2016-93 OPE2016-139 LQE2016-128 EST2016-103 MWP2016-77 |
Multi-wavelength NIR light source has been used in various application fields such as optical communication and biologic... [more] | PN2016-64 EMT2016-93 OPE2016-139 LQE2016-128 EST2016-103 MWP2016-77 pp.131-134 |
| LQE, OPE, EMD, R, CPM | 2016-08-25 15:05 |
Hokkaido | Lasing of InAs quantum-dot embedded photonic crystal waveguide lasers by using two-photon pumping at room temperature Hisaya Oda, Akio Yamanaka (CIST), Nobuhiko Ozaki (Wakayama Univ.), Naoki Ikeda, Yoshimasa Sugimoto (NIMS) R2016-27 EMD2016-31 CPM2016-40 OPE2016-61 LQE2016-36 |
(To be available after the conference date) [more] | R2016-27 EMD2016-31 CPM2016-40 OPE2016-61 LQE2016-36 pp.41-44 |
|
| LQE, LSJ | 2015-05-21 15:15 |
Ishikawa | Broadband near-infrared light source based on self-assembled InAs quantum dots for optical coherence tomography Nobuhiko Ozaki, Takuma Yasuda, Hiroshi Shibata (Wakayama Univ.), Shunsuke Ohkouchi (NEC Corp.), Eiichiro Watanabe, Hirotaka Ohsato, Naoki Ikeda, Yoshimasa Sugimoto (NIMS), Richard Hogg (Univ. Sheffield) LQE2015-5 |
A broadband near-infrared light source based on self-assembled InAs quantum dots (QDs) with controlled emission waveleng... [more] | LQE2015-5 pp.25-28 |
|
| PN, EMT, LQE, OPE, MWP, EST, IEE-EMT [detail] | 2013-01-25 13:35 |
Osaka | Osaka Univ. (Suita) | Generation of upconversion light by two-photon absorption in GaAs-based photonic-crystal waveguide Hisaya Oda, Akio Yamanaka (CIST), Nobuhiko Ozaki (Wakayama Univ.), Naoki Ikeda, Yoshimasa Sugimoto (NIMS) PN2012-59 OPE2012-168 LQE2012-160 EST2012-95 MWP2012-77 |
Photonic-crystal slab waveguides (PhC-WG) are suitable for controlling radiation field and propagation characterization ... [more] | PN2012-59 OPE2012-168 LQE2012-160 EST2012-95 MWP2012-77 pp.207-210 |
| ED, LQE, CPM | 2012-11-30 16:00 |
Osaka | Osaka City University | Growth of InAs-QDs emitting at 1um with a broadband spectrum via In-flush method for biomedical imaging Yuji Hino, Nobuhiko Ozaki (Wakayama Univ.), Shunsuke Ohkouchi (NEC Corp.), Naoki Ikeda, Yoshimasa Sugimoto (NIMS) ED2012-89 CPM2012-146 LQE2012-117 |
We have grown self-assembled InAs quantum dots (QDs) on a GaAs substrate emitting at around 1.05um in wavelength using t... [more] | ED2012-89 CPM2012-146 LQE2012-117 pp.113-116 |
| OPE, EMT, LQE, PN, IEE-EMT | 2010-01-29 14:25 |
Kyoto | Aluminum surface plasmon color filter Naoki Ikeda, Daiju Tsuya, Yoshimasa Sugimoto, Yasuo Koide (National Inst. for Materials Science), Atsushi Miura, Daisuke Inoue, Tsuyoshi Nomura, Hisayoshi Fujikawa, Kazuo Sato (Toyota CRDL) PN2009-59 OPE2009-197 LQE2009-179 |
In order to realize surface plasmon color filter we fabricated precise hole array which lattice constant of 300~400nm us... [more] | PN2009-59 OPE2009-197 LQE2009-179 pp.129-132 |
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| EMT, LQE, OPE, PN | 2008-01-28 15:45 |
Osaka | Optical bistability in AlGaAs-based photonic crystal cavities Hitoshi Kawashima (AIST), Yu Tanaka (Fujitsu Labs.), Naoki Ikeda, Yoshimasa Sugimoto, Toshifumi Hasama, Hiroshi Ishikawa (AIST) PN2007-49 OPE2007-157 LQE2007-135 |
Optical bistable responses were investigated under a stationary condition on AlGaAs-based 2D-photonic crystal cavities w... [more] | PN2007-49 OPE2007-157 LQE2007-135 pp.67-70 |
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| PN, OPE, OFT, LQE | 2005-01-27 10:25 |
Osaka | Osaka University | Ultra-fast photonic crystal/quantum dot all-optical switch for future photonic networks Yoshimasa Sugimoto, Hitoshi Nakamura, Yu Tanaka (FESTA), Naoki Ikeda (AIST), Kyozo Kanamoto (MELCO), Yusui Nakamura (Kumamoto Univ.), Shunsuke Ohkouchi (FESTA), Yoshinori Watanabe (Univ. Tsukuba), Kuon Inoue (CIST), Hiroshi Ishikawa (AIST), Kiyoshi Asakawa (Univ. Tsukuba) |
We demonstrated a novel two-dimensional photonic crystal (PC) based Symmetric Mach Zehnder type all-optical switch (PC-S... [more] | PN2004-87 OFT2004-93 OPE2004-194 LQE2004-141 pp.7-12 |
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