I managed to acquire a couple of Sayama Jiro’s books about Japanese small arms and some anti tank equipment for cheap! Looking forward to reading through them! 
日本陸海軍の対戦車戦
新装解說版 小銃 拳銃機関銃入門
「日本の小火器徹底研究
「日本の小火器徹底研究
(left) Shoju Kenju Kikan Ju Nyumon Nippon No Shokaki Tettei Kenkyu Shinso Kaisetsu Ban, (right) Nippon Rikukai Gun No Taisen Sha Sen
↓[translation]↓
New commentary edition Introduction to Rifles, Pistols, and Machine Guns Japanese A thorough study of Japanese small arms. & Japanese Army and Navy anti-tank warfare.
I’m sure if I find anything particularly interesting you’ll be hearing from me again soon enough on here.
Also on the note of books? Anyone else know some great books about Japanese Equipment?