¥608 by 2021 or US$5.69 under the current exchange rate of US$1 =¥106.775 in around six times that of traditional udon and soba noodles at the time. , Chicken Ramen is still sold in Japan and now retails for around ¥120 (US$1.12), or approximately one-third the price of the cheapest bowl of noodles in a Japanese restaurant. Cup Noodles invention According to The Financial Times, Ando's invention of Cup Noodles in 1971, at the age of 61, helped spark the popularity of instant noodles overseas. He had observed that Americans ate noodles by breaking the noodles in half, putting them into a paper cup, and pouring hot water over the noodles. They also ate them with a fork instead of chopsticks. Ando was inspired, and felt that a Styrofoam cup—with a narrower bottom than the top—would be the ideal vessel for holding noodles and keeping them warm. Eating the noodles would then be as easy as opening the lid, adding hot water and waiting. This simplicity, efficiency and low price of Cup Noodles went on to transform Nissin's fortunes. Ando began the sales of his most famous product, , on September 18, 1971, with the idea of providing a waterproof polystyrene container. As prices dropped, instant ramen soon became a booming business. Worldwide demand reached 98 billion servings in 2009. In 1972, the Asama-Sansō hostage standoff took place in Nagano Prefecture, Japan. Widespread coverage of the event, which included repeated images of the prefectural Riot Police Unit eating the noodles on national television, have been conjectured as boosting awareness of the brand. Industry memberships In 1964, seeking a way to promote the instant noodle industry, Ando founded the Instant Food Industry Association, which set guidelines for fair competition and product quality, introducing several industry standards such as the inclusion of production dates on packaging and the "fill to" line. He was also the chairman of the International Ramen Manufacturers' Association. Personal life and death When Taiwan was handed over to the Republic of China after the end of World War II, Ando had to choose between becoming its citizen or remaining a Japanese subject. Ando chose the former in order to keep his ancestral properties on the island, as all Japanese nationals had to forfeit their properties in Taiwan. Nevertheless, in 1966, Ando naturalized through marriage and became a Japanese citizen. "Momofuku" is the Japanese reading of his Taiwanese given