浦賀船渠
The Nichiryu Maru ("Nitiryu Maru") was a 5,447 gross register ton cargo ship built by Asano Ship Building Company, Tsurumi in 1919 as "Rozan Maru". She was the third ship of the "Yoshida Maru No 1"-class of 25 standard cargo ships (referred to as Type B at the time) built by Asano Shipyard (one was built at the Uraga Dock Company) between 1918 and 1919. In April 1929, she was acquired by Karafuto Kisen Kabushiki Kaisha and in 1931, renamed "Karafuto Maru". In 22 November 1937, she was acquired by Nissan Kissen Kabushiki Kaisha and renamed "Nichiryu Maru". She was requisitioned by the Imperial Japanese Army during World War II.