Research Experience
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2000-
-早稲田大学大学院国際情報通信学科(GITS)教授・委員長
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2000-
-Professor , Graduate School of Global Information and Telecommunication Studies GITS,
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1998-
- 早稲田大学国際情報通信研究センター(GITI)所長
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1998-
-Director,Global Information and Telecommunication Institute,
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1990-1996
郵政省郵政研究所研究官
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1990-1996
Institute for Posts and Telecommunications Policy,
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1978-1979
英国エセックス大学訪問教授
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1978-1979
University of Essex, Visiting Professor
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1976-1978
東北大学電気通信研究所流動研究員
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1976-1978
Study Groups on Electrical Communication,
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1976-
- 早稲田大学理工学部教授
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1976-
- Waseda University, Professor
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1971-1976
Waseda University School of Science and Engineering
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1971-1976
Waseda University, Associate Professor
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1964-1971
日本電信電話公社勤務
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1964-1971
Nippon Telegraph and Telephone corporation
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Waseda University,
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Researcher
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Tohoku University, Researcher