CREATE TABLE table_26282750_1 (date_of_ceremony VARCHAR, participants_recipients VARCHAR)

What date was the participant/recipient takakazu watanabe?
SELECT date_of_ceremony FROM table_26282750_1 WHERE participants_recipients = "Takakazu Watanabe"
SELECT "date_of_ceremony" FROM "table_26282750_1" WHERE "Takakazu Watanabe" = "participants_recipients"