 In 1945 with the endeavours of Ara Sargsian, the Institute of Fine Arts was opened in Yerevan with the Faculty of Painting and Sculpture, where Kojoyan worked as a professor.In 1959 an exhibition dedicated to the 75th anniversary of the painter was opened in Yerevan (afterwards in Tbilisi, Baku, Moscow, St. Petersburg).The exhibition was still on in St. Petersburg, when Kojoyan suddenly fell ill and died in Yerevan.