Hiroyuki SATO

Risk Assessment of Big Data Relating Service
Shigeaki TANIMOTO  Yoshiaki SEKI  Motoi IWASHITA  Hiroyuki SATO  Atsushi KANAI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2013/04/01
Vol. J96-A  No. 4  pp. 189-194
Type of Manuscript: Special Section LETTER (Special Issue on Security and Privacy Technologies for Big Data)
Category: 
Keyword: 
big data,  life log,  cloud,  ambient,  risk assessment, 
  Summary |  Full Text(in Japanese):PDF (4.3MB)
A Framework for Issuing Server Certificate to Academic Organizations
Masaki SHIMAOKA  Takeshi NISHIMURA  Takaaki KOMURA  Motonori NAKAMURA  Hiroyuki SATO  Yasuo OKABE  Noboru SONEHARA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2012/07/01
Vol. J95-B  No. 7  pp. 871-882
Type of Manuscript: Special Section PAPER (Special Section on Frontiers by Young Researchers)
Category: 
Keyword: 
academic federation,  authentication platform,  university PKI,  server certificate, 
  Summary |  Full Text(in Japanese):PDF (2MB)
A Ka-Band DBF Array Antenna for Land Mobile Satellite Communications
Kazunari KIHIRA  Isamu CHIBA  Yoshihiko KONISHI  Hiroyoshi MASUDA  Hiroyuki SATO  Hiroshi IKEMATSU  Hiroaki MIYASHITA  Shigeru MAKINO 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2006/09/01
Vol. J89-B  No. 9  pp. 1705-1716
Type of Manuscript: Special Section PAPER (Special Issue on Design, Analysis and Measurement Techniques in Antennas and Propagation to Meet Expanding Applications of Radio Systems)
Category: 
Keyword: 
digital beam forming antenna,  maximal ratio combining,  beam space,  mobile satellite communication,  Ka-band, 
  Summary |  Full Text(in Japanese):PDF (2MB)