Toyo Tire & Rubber Co. Chairman Akira Nobuki and President Takuji Yamamoto are considering resigning following a scandal in which the company installed substandard earthquake shock absorption devices in some buildings, sources said Thursday.

Nobuki, 60, is likely to step down soon, while Yamamoto, 58, will depart in the fall at the earliest, the sources said.

Toyo Tire needs to revamp management to restore public confidence hurt by a spate of recent revelations that it had falsified data on its devices. It is expected to announce preventive measures by the end of this month.