SoftBank Corp. and TOPPAN Holdings Develop Lightweight, Durable Skin for Solar HAPS Aircraft Wings

Skin’s compatibility with stratospheric conditions such as extreme UV rays and ultra-low temperatures makes longer HAPS operations possible TOKYO, April 27, 2026 /PRNewswire/ — SoftBank Corp. (TYO: 9434) (President & CEO: Junichi Miyakawa, “SoftBank”) and TOPPAN Holdings Inc. (TYO: 7911) (President & COO: Satoshi Oya, “TOPPAN Holdings”) jointly developed a lightweight, durable skin for use […]