Yes, there's a Tokyo
Disneyland Resort, with two theme parks, two Disney-branded hotels, five other official hotels, a shopping village, and a monorail. The resort is owned by the Oriental Land Company, which pays a percentage to The Walt Disney Company. See
http://www.tokyodisneyresort.co.jp/index_e.html
We can't use
DVC points to stay at any of the Tokyo Disneyland hotels. It would be great if the Disney Ambassador Hotel and the Tokyo DisneySea Hotel MiraCosta were on the Disney Collection list, but for whatever reason, DVC has not worked out such an arrangement with those hotels.
It really shouldn't matter that the Tokyo Disneyland Resort is not owned by The Walt Disney Company. After all, Disneyland Paris is also a separate company (although The Walt Disney Company owns a minority interest), but the hotels there are on the Disney Collection list. And none of the Concierge Collection hotels are owned by Disney, but DVC has worked out business arrangements so the DVC members can stay at them using points.
More likely, it's just that tourism to Japan from North America and Europe, where most DVC members live, is rare -- espcially tourism to visit Disney parks in Japan. (In comparison tourism across the Atlantic Ocean in both directions is very common.)