The Certified Council for Professional Dog Trainers (CCPDT) maintains a directory of professional trainers operating in Japan.
While the title might suggest a manual for pet owners, it is actually a collection of short manga stories (tanpen mangashuu). The "New Edition" (Shinsouban) of this work was released in early 2016. Product Details Makoto Kai - Training Dog -Jap-
This manga is primarily available through retailers specializing in Japanese media: The Certified Council for Professional Dog Trainers (CCPDT)
Lists the "New Edition" under their manga book category. Product Details This manga is primarily available through
In Japanese dog training, owners use specific terms such as mate (wait/stay), oide (come), and fuse (down/lie down).
If your original intent was to find actual or methods in Japan rather than the manga, you may find these resources more helpful:
Offers the Japanese version with international shipping options. Clarification on "Dog Training" in Japan