Former chairman of Seven & i Holdings Toshifumi Suzuki, credited for the global success of 7-Eleven convenience stores, had died at the age of 93, according to the company. Suzuki - known as the “father of the convenience store” in Japan - died due to heart failure on May 18, the company said in a statement on Monday. “We would like to express our deepest gratitude for the kindness shown to him during his lifetime and respectfully inform you of his passing,” the statement said. Suzuki is known..