コナ国際空港
Yamshiro is credited with introducing the 100% Kona coffee emblem and logo now widely used by Kona Coffee producers on the Big Island. He expanded the tourism industry between Japan and the Big Island of Hawaii. Yamashiro spearheaded efforts to recruit the U.S. Immigration and Customs Enforcement to open an office and international service at Kona International Airport. He also successfully lobbied for nonstop, international flights between Kona and Narita International Airport by Japan Airlines.