辰川会グループ is a prominent healthcare and welfare service provider in the eastern region of Hiroshima Prefecture. Established by the visionary Tatsukawa Mitsuaki over 40 years ago, the group now comprises approximately 560 dedicated staff members delivering integrated medical, caregiving, and welfare services.

At the core of their founding principles is a focus on dialysis healthcare, prominently represented by the Sanyo Hospital, as well as specialized clinics like Sanyo Kidney Clinic and Sanyo Numakuma Kidney Clinic. These facilities offer comprehensive care in various medical disciplines, including internal medicine, urology, orthopedic surgery, general surgery, and rehabilitation services.

Additionally, the group operates entrusted caregiving services, daycare centers, and specialized nursing homes. With a commitment to the "Community Comprehensive Care System" by 2025, Tatsukawa Group strives to create a supportive environment where patients, families, and community members can thrive together. Through their brand character "Tomonyan," Tatsukawa Group symbolizes their ethos of shared support and vibrant community living.