1. Department of Maritime Civilizations, School of Marine Science and Technology; Tokai University; Japan
2. Okinawa Prefectural Museum and Art Museum; Japan
3. Graduate School of Integrated Sciences for Global Society; Kyushu University; Japan
4. Institute of Geology and Geoinformation; AIST; Japan
5. Cultural Property Preservation Division, Osaka Prefectoral Board of Education; Japan
6. Asian Research Institute of Underwater Archaeology; Japan
7. Department of Mechanical Systems Engineering; Okinawa National College of Technology; Japan
8. Department of Navigation and Ocean Engineering, School of Marine Science and Technology; Tokai University; Japan