CREATE TABLE table_name_36 (launched VARCHAR, builder VARCHAR, laid_down VARCHAR)

when was the ship launched when it was laid down 20 october 1924 and built by fujinagata shipyards, japan?
SELECT launched FROM table_name_36 WHERE builder = "fujinagata shipyards, japan" AND laid_down = "20 october 1924"
SELECT "launched" FROM "table_name_36" WHERE "20 october 1924" = "laid_down" AND "builder" = "fujinagata shipyards, japan"