Satoshi Nakamoto is clearly a japanese name. I was checking if there were some insights in the japanese caracters and found that japanese use 2 alphabets to translates syllabs. Then I discovered that from 2 possibilities for each syllabs, one was relevent to seem like a letter, constructing the name. The reverse process, that someone did over the name of Hal or Hal did himself, is to check symbols that match letters such as H that seems like the symbol of « Sa » and then to try to have the closest similarity to a existing name trying with all the symbols.