| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1964 Summer Olympics
|
Volleyball (Volleyball) |
 JPN |
|
|
|
Katsumasa Nakajima |
|
|
Volleyball, Men
(Olympic)
|
|
Match #24 |
Bulgaria — Netherlands |
Referee #2 |
|
|
|
Volleyball, Men
(Olympic)
|
|
Match #27 |
Netherlands — Republic of Korea |
Referee #2 |
|
|
|
Volleyball, Women
(Olympic)
|
|
Match #4 |
Poland — United States |
Referee #2 |
|
|
|
1976 Summer Olympics
|
Volleyball (Volleyball) |
JPN |
|
|
|
Katsumasa Nakajima |
|
|
Volleyball, Men
(Olympic)
|
|
Match #2 |
Poland — Republic of Korea |
Referee #2 |
|
|
|
Volleyball, Men
(Olympic)
|
|
Match #6 |
Republic of Korea — Canada |
Referee #1 |
|
|
|
Volleyball, Women
(Olympic)
|
|
Match #1 |
Cuba — Canada |
Referee #2 |
|
|