The 4th Advanced Nanostructure Physics Workshop, jointly organized by Tokyo Metropolitan University, Tokyo University of Science, and Chiba University, was held in Atami. From our group, Mr. Uchino (D), Mr. Megumi (M2), Mr. Kusakabe (M2), Mr. Yanagi (M1), and Mr. Hisano (B4) participated. The workshop covered a wide range of topics from nanomaterials such as carbon nanotubes to advanced measurement techniques and theoretical calculations, providing an excellent opportunity to learn about diverse research activities. It also offered a valuable oppotunity for the participants to strengthen academic exchange among the different universities.