I had a meeting a block away from Japantown last weekend, and afterwards had some time to walk around the area and grab a bite to eat. It was a bit busy, so the zen of the experience was somewhat diminished, but I still love every opportunity I have to be in this unique place.
There was only one cache within walking distance for me to find, but I was delighted to see that the hider is a good friend: OLdweeb. He has a series dedicated to the now rare, almost extinct pay phone:
Little Tokyo DoDo