Neutron Science Laboratory the University of Tokyo cooperates joint research program using triple-axis spectrometers (TAS) in JRR-3, high-resolution chopper (HRC) spectrometer in J-PARC, and cold neutron triple-axis (CTAX) spectrometer in HFIR in Oak Ridge National Laboratory. Among them CTAX has been operated under the program based on the agreement between the governments of US and Japan on cooperation research and development in science and technology in 1980, and the spectrometer has been crucial for TAS users in Japan particularly after the long shutdown of JRR-3. In addition, state-of-art inelastic spectrometers including HRC has been producing outstanding results, and the complimentary use with TAS is now popular. Furthermore in 2023 the upgrade of CTAX in large scale, the MANTA project, is planned, and the US-Japan cooperative program is getting more important. In this workshop researchers in the field of neutron scattering in US and Japan will discuss the present and future of neutron scattering research on condensed matter physics. The present statuses of CTAX and MANTA project will be reviewed by US researcher, and the future of US-Japan cooperative program will be discussed. Furthermore, future of spectrometers in JRR-3 will be also discussed.