Bridgestone Corp. President Yoichiro Kaizaki said Monday that the tire maker will fully support Bridgestone/Firestone Inc., its troubled U.S. subsidiary, in efforts to rebuild its reputation.

Kaizaki denied that Firestone tires, which are believed to be linked to at least 88 highway deaths in the United States, are defective.

Firestone and Ford Motor Co. are investigating the cause of the accidents.