Main events scheduled in Japan for December: Dec. 1 (Thurs) — Official campaigning to start for Saga gubernatorial election. — Princess Aiko, daughter of Emperor Naruhito and Empress Masako, to turn 21. — Results of consumer confidence survey for November to be released by Cabinet Office. — Statistics showing corporate financial results by industry for July-September period to be released by Finance Ministry. — New motor vehicle sales data for November to be released by Japan Automobile Dealers Association. — Government request for households and companies to conserve electricity this wi…