There is a dedicated museum in Sakai as well apparently:

"Shimano Reel Museum (Sakai, Japan): Situated in Sakai, Japan, the Shimano Reel Museum offers a unique look at the history of fishing reels, with a particular focus on the innovations of Shimano, one of the world’s leading tackle manufacturers. " https://oldfishingluresandtackle.com/fishing-tackle-museums-...