Satoshi Nakagawa, head of Tripod Design and known in Japan as the "father of universal design," once designed a pen that required no effort to write with for someone suffering from leukemia and whose hands and wrists were so weak they couldn't even write their own name without difficulty.
被日本人尊稱為「通用設計之父」的 Tripod Design 公司社長中川聰表示，曾有一位手腕無法施力、連寫自己名字都有困難的病患，懇請中川聰幫忙設計一支不需費力書寫的筆。