Nobuharu Okamitsu

20200912-01
Transmission of environment data with preliminary secret sharing processing using Sigfox
Nobuharu Okamitsu, Koichi Miyazono, Takeshi Tanaka

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Using the Sigfox network and the Internet, we created Internet-of-Things devices equipped with temperature, humidity, and barometric pressure sensors to measure the environment data. In this study, we developed a way to process ...  read more

20200508-03
IoT device with Global Positioning System using SigFox, ThingSpeak, and Anaconda platform
Takeshi Tanaka, Nobuharu Okamitsu, Kenshi Nishino

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We have developed a rudimentary Internet of Things (IoT) device equipped with a global positioning system module using the Sigfox network. The data sent from the IoT device using Sigfox Cloud and ThingSpeak are received and ...  read more

20200304-01
Development of an IoT device using SigFox, ThingSpeak, and MATLAB/Simulink
Takeshi Tanaka, Nobuharu Okamitsu, Takuma Hamada, Kenshi Nishino

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We installed a Sigfox antenna at Hiroshima Institute of Technology and acquired basic environmental data via the Sigfox network. The IoT device created by us comprises Sigfox, ThingSpeak, and MATLAB/Simulink, and this configuration ...  read more

20181112-08
Construction of a preliminary educational system for file backup system using secret sharing technique
Takeshi Tanaka, Nobuharu Okamitsu, Noriyuki Yamada, Toyoharu Takemoto, Katia Vutova

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Information-Technology Promotion Agency points out Ransomware as the second-ranked damage to organizations as well as individuals in “10 Major Security Threats 2017”. Information is stored in three data files separately ...  read more

20180910-06
Construction of a preliminary file backup system for surface analysis data using secret sharing technique
Nobuharu Okamitsu, Tomonori Tabe, Ryota Matsuda, Noriyuki Yamada, Toyoharu Takemoto, Takeshi Tanaka

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We have established a preliminary file backup system to study the outline of secret sharing technology and test operations. Secret sharing scheme is a key management scheme or key establishment scheme invented separately in ...  read more

20160506-57
Simulation of ion implantation for Si using TCAD
Takuma Adachi, Yuki Hirota, Yosuke Nakaguchi, Kota Takahama, Koji Mukai, Masayuki Yamauchi, Nobuharu Okamitsu, Takeshi Tanaka

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To realize further high performance in semiconductor devices, the development of efficient processes and a reduction in the number of trial productions are indispensable. Therefore, the orientation of development plans and ...  read more