last month I've posted screenshots of the low tier Japanese HTs but will redo as some screenshots weren't shown and I actually missed one tank.
Will also be adding extra information and links to give you easier access to the information:
Tier 2 Type 89
Stats and Model.
Tier 3 Type 91
(Only screenshots were leaked, there are no Stats or Model of this vehicle)
Tier 4 Type 95
Stats and Model
High Tier Japanese HT's: http://ritastatusreport.blogspot.nl/2015/08/japanese-heavy-screenshots.html