On January 22, 2025, Dr. Roland Farrell, Postdoctoral Scholar, California Institute of Technology, visited R-CCS and we had discussions about utility scale experiments of quantum computers. Dr. Farrell gave an invited talk at The 7th International Symposium (https://www.r-ccs.riken.jp/R-CCS-Symposium/2025/), held at Kobe International Conference Center on January 23-24.