"Rakuraku Cloud Backup 2” strengthens data protection with immutable retention of 90 or 180 backup versions TOKYO, Oct. 28, 2026 (GLOBE NEWSWIRE) -- OTSUKA CORPORATION (headquartered in Chiyoda-ku, Tokyo; President and Representative Director: Yuji Otsuka) and Acronis Japan Co., Ltd. (headquartered in Minato-ku, Tokyo; President and Representative Director: Hisao Toyama; hereinafter "Acronis") today announced that they have jointly commercialized Rakuraku Cloud Backup 2, an OTSUKA CORPORATION proprietary so ...