Makiko Yamada had been grilled recently by opposition lawmakers in Parliament about the 2019 dinner and had been scheduled to answer more questions Monday. She had previously said she did not remember or was not fully aware of the circumstances.
Yamada's job included the responsibility of picking reporters to ask questions at Prime Minister Yoshihide Suga's news conferences.
The broadcaster in question, Tohokushinsha Film Corp., employs Suga’s son. That has raised suspicions of cronyism in a nation where plum jobs are often hard to come by without connections.
Accepting lavish wining and dining is a violation of regulations overseeing bureaucrats’ ethics. There were several such dinners the ministry officials had allegedly accepted, including cab fares.
Other ministry bureaucrats reportedly at the dinner have been penalized. The president of Tohokushinsha resigned last month.
Government spokesman Katsunobu Kato told Parliament on Monday that Yamada resigned. She was hospitalized for two weeks for an illness and can’t carry on her duties, and Suga accepted the resignation, Kato said. Details of her sickness were not given.
Yamada had held other bureaucratic jobs, including at the ministry overseeing telecommunications. Suga was a minister there before becoming prime minister.
The ministry has the authority to award bandwidth usage rights to broadcasters.
Yamada had been seen as a role model of female leadership in a nation that has lagged in gender equality.