The Unokubi Zukuri is a style of Japanese sword forging that is derived from the Naginata and has been transferred to other weapons, such as the Katana. In this style, the blade has a unique shape in that it tapers towards the end and gently curves upward. The result is a lighter and more balanced blade, which is especially suitable for cutting.
The Unokubi Zukuri style is also characterized by a slight curve in the center of the blade , called a Yokote , which helps distribute the weight of the sword evenly and makes it easier to handle the sword. In short, the Unokubi Zukuri style is a forging technique used to create lighter, more balanced sword blades that are ideal for cutting and quick handling in combat.