TOKYO (AP) _ Takeshi Yasukawa, Japan's ambassador to the United States in the 1970s, has died of liver cancer, his family said Sunday. He was 86.

Yasukawa died Saturday night at a Tokyo hospital, his son Youichi said.

Yasukawa, who served as ambassador to Washington from July 1973 to January 1976, later became Tokyo's trade negotiator under the 1978-80 Prime Minister Masayoshi Ohira Cabinet when Japan's trade surplus with the United States was already large.

Yasukawa entered the Foreign Ministry in 1939 and served as director-general of the North American Affairs Bureau, ambassador to the Philippines and deputy foreign minister before being appointed U.S. ambassador.

Yasukawa is survived by his son and two daughters.

A wake will be held in Tokyo on Wednesday and a funeral service Thursday.