Yokohama Rubber Co. Ltd. (TYO:5101) is targeting sales of 700 billion yen ($6.56 billion), an operating profit of 70 billion yen and a return on equity of 10 percent under international financial reporting standards (IFRS) for its new medium-term management plan. Named “Grand Design 2020,” the plan is set to run through to 2020. Company president Masataka Yamaishi said that…