Takata Corp., the company behind the biggest product-safety recall in U.S. history, will give the executive in charge of quality assurance more authority by naming him to the board of directors.

Senior Vice President Hiroshi Shimizu, who has overseen quality assurance since 2013, is one of three new appointments to the board, according to a filing to the Tokyo stock exchange on Friday. Former President Stefan Stocker will step down from the board when his term ends this month.

Takata bowed to pressure from the U.S. National Highway Traffic Safety Administration last month and agreed to recall about 34 million air bag inflators. There have been six deaths, five in the U.S., linked to a defect that can cause the bags to deploy with too much force and spray shrapnel in the passenger compartment.

Stocker joined Takata as an executive officer in February 2013. He began his career at Robert Bosch GmbH in June 1982. At the time of his appointment as president, Takata said the move was part of plans to strengthen the operational structure of the company, which was then facing increasing recalls by its key customers including Honda Motor Co. to replace faulty air bag inflators.

Hideyuki Matsumoto, a company spokesman, declined to comment on whether Stocker will remain with the company after he steps down from the board.

Besides Shimizu, Takata will also name Chief Financial Officer Yoichiro Nomura to the board. The appointments need to be approved by shareholders later this month.