The name of the island passed to Japan after the Sino-Japanese War?

The Sino-Japanese War of 1894 ended with the defeat of the Manchu army, and China lost significant territories. Korea became a vassal of the Japanese Empire, and Formosa came under its control. Formosa is the current name of the island of Taiwan, the Chinese residents did not agree with Japanese citizenship, the war on the island continued for another five years and ended with the extermination of the local population.