These things with "Fuji" all come from Japan. Personally, I think that because Mount Fuji is one of the world's famous peaks, it is regarded as a holy mountain by the Japanese. At 3,776 meters high, it is the highest peak in Japan. Because it is the highest in Japan, and the Japanese have the custom of using place names as names, "Fuji" is a symbol of "the best, the best".

Because Mount Fuji, as a symbol of Japan, has a very noble and great image in the minds of Japanese people. Just like when you think of cherry blossoms, sumo wrestling, karate, sushi, etc., you can think of Japan. Therefore, the brand names of some Japanese products also like to use the word Fuji (ふじ).