12 × Type 92 remotely controlled mines or 20,000 m (65,616 ft 10 in)) submarine cable
The Hashima-class cable layers (初島型電纜敷設艇,, Hashima-gata Denran-Fusetsutei) were the only class of purpose-built cable layers of the Imperial Japanese Navy (IJN), serving during World War II. Four vessels were built in 1939–41 under the Maru 4 Programme.
Apart from laying communications cables, these ships were also designed as mine planters, for the installation of controlled mines in coastal fortifications.
Decommissioned on 30 November 1945. Transferred to Ministry of Communications and Transportation and renamed Tsurushima Maru (釣島丸) in 1945. Transferred to Nippon Telegraph and Telephone Public Corporation on 8 September 1951. Retired in March 1968.
^10 December 1940, Notice No. 288, Named one minesweeper, one submarine chaser and two cable layers, Minister's Secretariat, Ministry of the Navy, 1940.
Bibliography
Monthly Ships of the World, Special issue Vol.45, "Escort Vessels of the Imperial Japanese Navy", "Kaijinsha"., (Japan), February 1996
The Maru Special, Japanese Naval Vessels No.47, "Japanese naval mine warfare crafts", "Ushio Shobō". (Japan), January 1981
Senshi Sōsho Vol.31, Naval armaments and war preparation (1), "Until November 1941", Asagumo Simbun (Japan), November 1969