・Dec. 2012, Okamura retired Vice-Chair of ITU-T TSAG after 8 years of services.
・June 2011, Okamura became an Invited Adviser of AIST: National Advanced Institute of Industrial Science and Technology, Japan
・May 24, 2011 “O plus E” published My Remark by Okamura
⇒ see the Japanese version (私の発言） here