Basically, “Toto” is to sophisticated toilets in Japan as “Apple” is to consumer electronics in America. Toto unveiled a prototype motorcycle with a toilet bowl to convert a driver’s waste into fuel, not only making it self-gassed-up but contributing to the company’s goal of reducing carbon dioxide emissions by 50 percent within six years. The company was launching a month-long, cross-country publicity tour — presumably featuring a gastro-intestinally robust driver.