Paleomagnetic and rock magnetic studies were performed on 22 sediment core samples taken by the Antarctic Geological and Geophysical Research Project (FY1980-1999) of the Japan National Oil Corporation (JNOC). These core samples were made available since 2002 after being transferred to the Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), and their reports were released. These cores did not suffer serious magnetic damage, though they have been kept in a room temperature since 2002 after being kept refrigerated for more than 10 years. Our results of measurements of natural remanent magnetization (NRM) and magnetic susceptibility agree with the results of the JNOC reports. Some magnetic parameters, anhysteretic remanent magnetization (ARM) and saturation isothermal remanent magnetization (SIRM) were also shown in our figures, which were not measured during the project. They are important environmental magnetic parameters and would be useful for the research of the Antarctic Ocean in the future.