A Japanese man who fathered at least a dozen babies using Thai surrogate mothers appeared in court via video conference Tuesday, testifying in a case in which he is suing the government for paternal rights.

His lawyer said that the Central Juvenile Court, where the case that has drawn wide attention is being heard, will issue its ruling on Feb. 20.

The 28-year-old man who lives in Japan reportedly hired many Thai women to bear his children in 2014.