|Birth:||1 June/1 September 1906|
Kasugai, Aichi, Japan
|Age:||111 years, 30-152 days|
Okamura was born in Japan between 1 June and 1 September 1906. He became the oldest living man in Aichi Prefecture following the death of Yasutaro Koide on 19 January 2016.
Okamura died in Kasugai, Aichi Prefecture, Japan, in October 2017, at the age of 111 years, 30-152 days.