The pending list that GRG correspondents can see is up-to-date (so updated every month) and currently has more than 1,100 cases in there (including many Japanese SCs born in 1905, 1906, and 1907).
If you become a GRG correspondent for Japan, which we would love to have - as our Japanese is not that good - you will have access to this pending list, among others. Perhaps some of you are willing to consider this?