I have several books on Japanese houses in my library, but little about commercial, institutional or industrial buildings. If you have access to a library with a good Architecture collection, look for anything by Heinrich Engel.
The two books I have by Engel are:
"Measure and Constuction of the Japanese House," a good introduction with lots of sketches and plans.
The second is Engel's massive "The Japanese House, A Tradition for Contemprary Architecture." Many photos and drawings and the most in-depth study of traditional Japanese architecture I've seen.
Both will give you a look at various traditional framing techniques.
There is something intriguing about the idea of constructing model Japanese houses from paper.
Wayne