TOKYO — The head of Japan’s Olympic Committee said on Tuesday that he would step down at the end of his term this summer — a decision that comes as he faces a French corruption investigation into how Tokyo was chosen to host next year’s Summer Games.

The committee’s president, Tsunekazu Takeda, has said that he is innocent. But the allegations have mired the games in scandal, further damaging the credibility of the Olympics bidding process and casting a shadow over what the Japanese government had hoped would be a showcase for the country’s revival.

Speaking at a news conference Tuesday afternoon, Mr. Takeda said he planned to resign in late June, at the end of his 10th term as president of the committee, to make room for a new generation of Olympic leadership. He will also resign his position on the International Olympic Committee.

“It’s very painful for me to think that I have made such an uproar in society,” he said, but he added, “I have done nothing wrong, and moving forward, I want to make efforts to prove my innocence.”