He was honorary chairman of the Foundation Sasakawa Memorial Health Cooperation.

Hinohara is credited with establishing and popularizing Japan's practice of annual medical checkups.

[1] Hinohara was born in Yoshiki District, Yamaguchi Prefecture and graduated from the school of medicine at Kyoto Imperial University in 1937.

[4] He was also on Japan Airlines Flight 351 when it was hijacked by the Japanese Red Army Faction.

[1] Hinohara became an honorary member of the Japanese Cardiovascular Society and received the Second Prize and the Order of Culture.