It’s not some Japan-only technology. You see them in New York City too.

You park your car in a stall, get out of your car, and then the stall closes and it moves a platform under your car and stores it someplace. You punch in your claim number, pay your parking fee, and then it gets your car and puts it back in the stall.

They're in places other than Tokyo as well.

https://www.youtube.com/watch?v=6blks7vfZog

One was featured in the old Fast and Furious: Tokyo Drift movie. That was probably the first time I had seen one, about 20 years ago.

https://www.youtube.com/watch?v=hHAkCLk6wP8

20 years ago https://www.youtube.com/watch?v=hHAkCLk6wP8

https://roboticparking.com/how-it-works/

...as one example.