Police suspect him to have abused his professional standing as the woman aspired to be an actress.
She first met Sakaki in 2015 at an actors workshop.
The Tokyo Metropolitan Police Department has referred him to prosecutors.
Tokyo: where actor-director Sakaki Hideo was arrestedMarci Bottigelli
Sakaki is known for directingDisregarded People(2013), which screened at the Tokyo International Film Festival.
In 2018, he won a Pink Film Award for Oustanding Film forBlack Tears.
This is the latest sexual assault accusation inJapans TV and film industry over recent years.
