Land, Infrastructure and Transport Minister Chikage Ogi partially resumed her official duties Thursday, one week after entering a hospital to receive liver treatment.
The 68-year-old minister, who has not yet been officially released from the hospital, attended a meeting at the government's headquarters to discuss urban renewal plans. She returned to the hospital after the meeting.
"We have not heard any details" as to when she will be released, said Masato Obata, the ministry's vice minister.
On Sunday, Ogi is scheduled to visit South Korea, where she will attend the general assembly of the World Tourism Organization, co-sponsored by South Korea and Japan.