
The Japanese family of weaves are based on the weaves that were used in Japanese armour in the middle ages. Specifically, the Japanese 6 in 1 and 4 in 1 weaves were used to connect small plates together, which provided flexibility between the plate sections.
In this weave family, ring connections are perpendicular to one another. This creates two ring configurations: vertical rings, and horizontal rings. Rings can be doubled (or tripled, etc.) to achieve tighter, more stable weaves. It should be noted that with Japanese x in y not every ring passes through x rings, only the horizontal rings (y) do, and not all of them necessarily do in every single Japanese weave variant. Each vertical (x) ring passses through double the number of horizontal rings in each cell. An exception to this rule is when a dimensional structure of a certain weave is created, such as Japanese 4 in 1 Cube.
Weave Name: Japanese 12 in 2 
Weave Name: Japanese 3 in 1 
Weave Name: Japanese 4 in 1 (so gusari) 
Weave Name: Japanese 4 in 1 Cube 
Weave Name: Japanese 6 in 1 (asa no ha gusari) 
Weave Name: Japanese 6 in 1 Variant 1 
Weave Name: Japanese 8 in 2 