katana blade - concepts that are not so common



The term "mumei" in the context of samurai swords refers to a sword whose original owner or maker is unknown. Literally translated from Japanese, it means "nameless" or "without doubt". These swords may be historically significant, but their history is lost or unknown. Mumei swords can be valued for their artistic value, technical workmanship, or the mystery that surrounds them. For collectors, mumei swords are interesting objects that often attract attention due to their mysterious history.
The term "iori-mune" refers to one of the types of back shaping (mune) of Japanese swords, such as the katana. "Iori-mune" is also known as "hira-mune" and refers to the back of the blade which is flat or straight, without any protrusions or recesses. This type of mune is characterized by its simplicity and purity of line. Swords with iori-mune usually have a more refined appearance overall, although this style can be combined with different blade shapes and different types of blades.
- deep koshizori
The term "deep koshizori" describes a certain shape of curvature (sori) of Japanese swords, such as the katana. "Koshizori" refers to where the curvature is greatest, usually near the base of the blade. If this curvature is very pronounced or penetrating, it may be called "deep koshizori". This shape of curvature can affect the behavior of the sword in use and its performance. Deep koshizori swords usually have a greater emphasis on cutting power and cutting efficiency, making them suitable for certain combat situations. These swords can also be aesthetically pleasing, with the pronounced curvature of the blade adding to their overall appearance.
- funbari
The term "funbari" is used in the context of Japanese swords, such as the katana, and refers to the characteristic shape of the blade. Funbari refers to the gradual widening of the blade from the base (nakago) to the tip (kissaki). This means that the blade starts off relatively narrow at the base and gradually gets larger towards the tip. This shape allows the weight of the blade to be evenly distributed and contributes to the harmonious movement of the sword when cutting. Funbari is one of the aesthetic characteristics of Japanese swords and is often valued for its elegance and functionality.
The term "ikubi-kissaki" refers to one of the tip shaping types (kissaki) of Japanese swords, such as the katana. Literally translated from Japanese, it means "neck tip". Ikubi-kissaki has a characteristic shape that resembles the neck or nape of a bird. This tip shape is short, thick and round. Swords with ikubi-kissaki are rather massive and have a robust appearance. This type of shaping was especially common in older Japanese swords and may provide some advantages when used in combat. Ikubi-kissaki is one of the many variations of tip shapes found on Japanese swords that contribute to their aesthetics and functionality.
The term "ubu nakago" is used in the context of Japanese swords, such as the katana, and refers to the original, intact length of the sword's hilt. The "Nakago" is the part of the sword that extends into the hilt and to which the hilt is attached. When a sword is said to have "ubu nakago" it means that the length of the nakago has not been shortened or altered since its original manufacture. Ubu nakago is a prized feature on historic Japanese swords, as it indicates that the sword has not been subject to later modifications or repairs, which may affect its value and authenticity. For historical collectible swords, the presence of ubu nakago can be an important factor in evaluating their authenticity and historical value.
"Motohaba" is a term used to describe Japanese swords, especially katana and other types, and refers to the width of the blade at its base. This is a measurement of the width of the blade at its widest point, which is usually near the base or to the mother part (moto) of the sword. Motohaba is an important aspect when evaluating a sword's construction and can affect its overall performance and aesthetics. For example, the width of the blade at the base can affect the stability of the sword, its balance and the ability to transfer power when cutting. A wider motohaba can contribute to greater strength and stability, while a narrower motohaba can lead to a lighter and faster sword.