About HAMAZUMI HIROYUKI
About NHK 放送技研
About 映像情報メディア学会誌
About sports
About broadcast(telecommunication)
About HDTV
About radio transmission
About communication apparatus
About EHF wave
About microwave
About television
About telecommunication
About Olympics
About super high-definition television
About 8K super hight-vision
About large capacity transmission
About Television in general
About Stadiums,exhibition halls,memorial architectures,others
About オリンピック
About 放送
About スーパーハイビジョン
About FPU