NTT Telecommunications Networks Laboratories,
NTT Corporation
(April 1989 -- January 1994)
Research Engineer, NTT Telecommunications Networks Laboratories,
NTT Corporation
(February 1994 -- March 1998)
Manager, Traffic Research Center,
NTT Advanced Technology Corporation (NTT-AT)
(April 1998 -- March 2001)
Senior Research Engineer, NTT Information Sharing Platform Laboratories,
NTT Corporation
(April 2001 -- March 2005)
Associate Professor, Faculty of System Design,
Tokyo Metropolitan University
(April 2005 -- March 2006)
Associate Professor, Graduate School of System Design,
Tokyo Metropolitan University
(April 2006 -- March 2007)
Professor, Graduate School of System Design,
Tokyo Metropolitan University
(April 2007 -- March 2018)
Editor, IEICE Transactions on Communications
(May 2009 -- May 2011)
Chairperson, Department of Management System Design,
Graduate School of System Design, Tokyo Metropolitan University
(April 2010 -- March 2012)
Vice Chair, Editorial Board, IEICE Communications Society,
(a member of Board of Directors, IEICE Communications Society)
(May 2012 -- May 2014)
Chairperson, Preparation Department of Computer Science,
Graduate School of System Design, Tokyo Metropolitan University
(April 2016 -- March 2018)
Professor, Graduate School of Systems Design,
Tokyo Metropolitan University
(change of name: System Design -> Systems Design)
(April 2018 -- present)
Assistant to the Dean, Graduate School of Systems Design,
Tokyo Metropolitan University
(April 2018 -- March 2019)
Chairperson, Department of Computer Science,
Graduate School of Systems Design, Tokyo Metropolitan University
(April 2021 -- March 2024)