CREATE TABLE table_64458 ("Kanji" TEXT, "Name" TEXT, "Builder" TEXT, "Laid down" TEXT, "Launched" TEXT, "Completed" TEXT)

when was the ship launched when it was laid down 20 october 1924 and built by fujinagata shipyards, japan?
SELECT "Launched" FROM table_64458 WHERE "Builder" = 'fujinagata shipyards, japan' AND "Laid down" = '20 october 1924'
SELECT "Launched" FROM "table_64458" WHERE "Builder" = 'fujinagata shipyards, japan' AND "Laid down" = '20 october 1924'