A billionaire playboy, industrialist and ingenious engineer, Anthony Edward "Tony" Stark suffers a severe chest injury during a kidnapping in which his captors attempt to force him to build a weapon of mass destruction. He instead creates a powered suit of armor to save his life and escape captivity. He later uses the suit to protect the world as Iron Man. Through his corporation ― Stark Industries ― Tony has created many military weapons, some of which, along with other technological devices of his making, have been integrated into his suit, helping him fight crime.
Source: Wikipedia, "Iron Man", available under the CC-BY-SA License.