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Committee Date Time Place Paper Title / Authors Abstract Paper #
AP 2021-03-26
Online Online An Experimental Study of Radio Scattering Multipath by Random Wave Surface
Takayuki Nakanishi, Kenya Shimizu, Takahiro Hashimoto (MELCO), Kenzaburo Hitomi (MEE), Michio Takikawa, Yoshio Inasawa (MELCO) AP2020-133
 [more] AP2020-133
Online Online [Invited Lecture] Accelerating ray tracing using nonuniform ray launching directions
Takahiro Hashimoto, Michio Takikawa (Mitsubishi electric) AP2020-15
Ray-tracing has been successfully used as a site specific radio propagation model adopted to wide range applications suc... [more] AP2020-15
Kagawa Sunport Hall Takamatsu Triple Resonances Small Spherical Antenna with Parasitic Elements
Hikaru Takizawa, Takahiro Hashimoto, Takumi Nishime, Nguyen Cong Oai, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2019-156
A small spherical antenna is one of the electrically small antennas which has Q-factor approaching the lower bound on Q.... [more] AP2019-156
Kagawa Sunport Hall Takamatsu Circular Folded Dipole Antenna for RFID Tag on Metallic Cylinder
Takahiro Hashimoto, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Takayuki Koshi (Komatsu Ltd.) AP2019-162
Recently, the use of UHF (Ultra-High Frequency) RFID (Radio-Frequency Identification) technology has been studied to man... [more] AP2019-162
WBS, ITS, RCC 2018-12-06
Okinawa Miyako Island Hirara Port Terminal Bldg. [Poster Presentation] Accuracy Verification of Estimate for Lane Marker Deterioration with Multiple Regression Analysis
Takahiro Hashimoto, Haruki Kawanaka (Aichi Pref Univ.), Shintaro Ono (Tokyo Univ), Yasuharu Asai (KICTEC), Koji Oguri (Aichi Pref Univ.) WBS2018-42 ITS2018-25 RCC2018-73
Lane marker has been ranked of repainting by expert evaluator.But, it's inefficient that evaluate vast lane markers by v... [more] WBS2018-42 ITS2018-25 RCC2018-73
AP 2018-04-20
Tokyo Hachijomachi-Shokokai Radio Propagation Estimation Using Point Cloud at ETC Gate Obtained from MMS -- Dependence of Surface Reconstruction Algorithm on Estimation Accuracy --
Takahiro Hashimoto, Takayuki Nakanishi, Michio Takikawa, Naofumi Yoneda, Mamoru Miura, Yoshiaki Tuda (Mitsubishi Electric Corp.) AP2018-11
In order to improve an efficiency of radio placement design of ETC (electoronic toll collection) system using radio prop... [more] AP2018-11
AP 2018-03-09
Gunma Hotel Ichii (Kusatsu, Gunma) A Study of Radio Propagation Statistical Model and Design for Indoor Environment
Takayuki Nakanishi, Takahiro Hashimoto, Kenya Shimizu, Michio Takikawa, Naofumi Yoneda (Mitsubishi Electric) AP2017-199
 [more] AP2017-199
EMT, IEE-EMT 2017-11-11
Yamagata Tendo Hotel (Tendo, Yamagata) Placement Design of Wireless Base Stations in Indoor Environment Using Particle Swarm Optimization
Takahiro Hashimoto, Takayuki Nakanishi, Yoshio Inasawa, Naofumi Yoneda (Mitsubishi Electric Corp.) EMT2017-71
In order to introduce wireless devices efficiently in indoor environment, we propose an placement optimization algorithm... [more] EMT2017-71
- 2017-06-30
Hokkaido Hokkaido University [Poster Presentation] Radio Propagation Estimation Accuracy and Time by Vertical Plane Launch Approximation
Takahiro Hashimoto, Takayuki Nakanishi, Yoshio Inasawa, Naofumi Yoneda, Hiroaki Miyashita (Mitsubishi Electric Corp.)
In the design of radio placement on large outdoor scene, reducing huge calculation time using such a vertical plane laun... [more]
AP 2016-01-14
Tokyo Takushoku University, Hachiouji Campus [Invited Lecture] Statistical Model Utilizing Ray-Tracing for Indoor Radio Propagation Prediction
Takahiro Hashimoto, Yasuhiro Nishioka, Yoshio Inasawa, Hiroaki Miyashita (Mitsubishi Electric Corp.) AP2015-174
In order to improve accuracy of the statistical models in indoor propagation characteristics, we propose an estimation m... [more] AP2015-174
WIT, HI-SIGACI 2015-12-09
Tokyo AIST Tokyo Waterfront Development and Evaluation of a Braille Font Designed for Swell Paper
Takahiro Hashimoto, Tetsuya Watanabe (Niigata Univ.) WIT2015-81
A previous study was shown readable dimensions of braille on swell paper. Based on this finding, we developed two kinds ... [more] WIT2015-81
EMT, IEE-EMT 2015-10-31
Miyazaki Holiday Inn ANA Resort Miyazaki Calculation Accuracy and Time of Outdoor Propagation Estimation Using Vertical Plane Launch
Takahiro Hashimoto, Yasuhiro Nishioka, Yoshio Inasawa, Hiroaki Miyashita (Mitsubishi Electri Corperationc Corp.) EMT2015-84
 [more] EMT2015-84
EMT, MW, OPE, MWP, EST, IEE-EMT [detail] 2015-07-16
Hokkaido Kushiro City Lifelong Learning Center Classification Rule of NLoS Region in Indoor Propagation Estimation Combining Ray-Tracing with Statistical Models
Takahiro Hashimoto, Yasuhiro Nishioka, Yoshio Inasawa, Hiroaki Miyashita (Mitsubishi Electric Corp.) EMT2015-31 MW2015-69 OPE2015-43 EST2015-35 MWP2015-34
In order to improve estimation accuracy of statistical models, a method in which subdivide NLoS region using number of r... [more] EMT2015-31 MW2015-69 OPE2015-43 EST2015-35 MWP2015-34
WIT 2015-03-13
Ibaraki Kasuga Campus, Tsukuba University of Technology A Study on the Factors which Affect the Expansion of Tactile Symbols on Swell Paper -- The Effect of the Position and Area of Symbols and the Heat Setting --
Takahiro Hashimoto, Tetsuya Watanabe (Niigata Univ.) WIT2014-99
Swell paper is one method of making tactile graphics. Its foaming heights are affected by several factors such as the he... [more] WIT2014-99
EMD 2012-03-02
Tokyo Tanagawa Univ. A study for operation failure of the degree of rotation angle of slip-ring for small signals
Takahiro Hashimoto, Masaomi Arai, Yoshitada Watanabe (Kogakuin Univ.) EMD2011-129
Slip-ring for power is indispensable to power the rotating body, generally for a fixed electrode to be transmitted from ... [more] EMD2011-129
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