The Japanese word for pineapple is painappuru and pineapple juice is bainappurujūsu.
Interesting facts about pineapples in Japan
Pineapples are popular in Japan and the country is one of the top pineapple importers in the world.
They do grow them in Okinawa but the overall demand far outweighs local supply so the rest is mainly imported from Taiwan and Malaysia.
Read more about the interesting history of pineapples in Okinawa.