K. Hanada：（XOPTp-19，Poster）EUV-FEL nanofocusing mirror optics: high-order spherical aberrations of AKB optics

A. Iwano：（XOPTp-22，Poster）Development of X-ray two-color multilayer mirrors for XFEL sub-10 nm focusing optics

K. Takemura：（XOPTp-6，Poster）Development of focusing optics for high-resolution X-ray ptychography

D. Osaki：（XOPTp-8，Poster）Development of precise advanced KB mirrors for high-flux X-ray nanobeam at SPring-8-�U