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| It is said that our dojo doors were locked at night not to protect those within, but to protect those who might break into our dojo.  | 
Several swords were prominent during Feudal Japan and these are generally known as Japanese swords (日本刀) or nihontō. The kanji used to write Japanese sword(s) include ‘日’ the ideograph for sun, and ‘本’ the kanji for ‘origin’ or ‘root’ (this symbol is a pictorial graphic of a tree with a root at its base indicated by the small cross horizontal line at the bottom of the kanji). These two kanji (日本) are combined to represent Japan (origin of the sun). The third kanji (刀) represents sword: thus all together we have Japanese sword(s). The Japanese do not distinguish between plural and singular nouns.
Most Japanese swords 
are not well-defined and categories for length of the weapon are general. The 
lengths were measured in shaku (the average 
distance between nodes of a mature bamboo stem ~ 1 foot). The primary shaku used to measure most objects in 
Japan equals 30.3 cm (11.93 inches).
A general length classification 
scheme used for nihontō:
- tantō (knife or dagger) = 1 shaku or less;
 
- wakizashi or kodachi (short swords known as shōtō) = 1 to 2 shaku;
 - katana or tachi (long swords known as daitō) = more than 2 shaku;
 - ōdachi (long swords) = more than 3 shaku.
 
In addition to the above swords, the 
naginata and yari were considered to be part of the nihontō family even though they were 
pole mounted blades.
The most common sword known to Westerners is katana (刀). 
The katana is a single edged sword, 
with a curve blade whose possession was restricted to the samurai lineage during 
Feudal Japan. It was thought that katana were the soul of samurai and was so important that the samurai actually gave names to their 
swords, as they were considered to be part of the living.
Long Swords
The ‘ō’ in ōdachi refers to ‘great’. The kanji for ‘great’ is written as ‘大’ 
which also means big. 
The ōdachi predated katana and had some unique 
characteristics. Not only was the sword noticeably long, the ōdachi was marked by religious 
inscriptions imprinted on the tang. It is thought by most researchers that 
ōdachi were used in ceremonies 
prior to battle; and because their length (5 to 6 shaku) was enormous (often longer than 
the samurai was tall), it is thought 
many were used as cavalry swords. The ōdachi would have been impractical to 
carry in an obi (belt) around one’s 
waist. Thus, it was thought the weapon was either carried on one’s back, in 
hand, attached to a horse, or by an assistant who followed the samurai.
| Dr. Teule trains with 
bokken at a Seiyo No Shorin-Ryu Clinic taught by Soke Hausel in Gillette, Wyoming.  | 
(2) Nodachi
The nodachi is often confused with 
ōdachi. However, nodachi refers to any type of long 
battlefield or field sword (daitō) as well as a tachi and is often misapplied to any 
over sized Japanese sword. It has the same appearance and design as a tachi, but was significantly longer. The 
sword is believed to have been used primarily for dueling.
Daitō
(3) Katana (刀). 
The katana 
(pronounced kah-ta-nah in Japanese 
and popularized as ka-tan-a in the 
West), was one of the traditional swords worn by samurai.  It had a blade larger than 2 shaku with a more moderate curve than 
a similar blade known as tachi (see 
#4 below). The katana was worn on the 
left side of the samurai with the 
cutting edge (yaiba or ha) up. The blade included a circular 
to square guard (tsuba) separating it 
from a long grip handle or pommel (tuska) made for two hands. The blade of 
the katana along with the portion of 
the blade known as the nakago that 
extends into the handle was all one continuous piece known as the tang. Those katana made for combat (shinken) and training (iaitō) have full tang. This simply means that the nakago and ken (blade) are made of one, 
uninterrupted, piece of steel. Many cheap practice (iaitō) unfortunately have two 
separate pieces - a blade and handle. This results in loosening of the blade 
with prolong use until the handle starts to separate from the blade. Thus, when 
searching for an iaitō it is best to pay a few extra bucks and 
purchase one with a full tang. If you decide to purchase one to train in any of 
our dojo, it must be an 
iaitō with dull edge. Shinken are way too dangerous for dojo use and in Arizona should be 
reserved for trimming cactus.
| Sensei Borea demonstrates naginata at 
Seiyo Kai Hombu in 
Arizona. Sensei is of  true Japanese samurai lineage and is the Staff Samurai at our dojo in Mesa, Arizona.  | 
The grip handle of 
katana is typically covered with ray 
skin leather (same’) and wrapped with 
cord known as ito. To hold the handle 
(tsuka) in place on the nakago, a hole was punched into the 
steel nakago and a small bamboo peg 
(mekugi) forced through the handle 
into the nakago. When the handle is 
removed from a well-made katana by forcing the mekugi out, the swordsmith’s signature 
should be seen carved into the nakago. The katana was developed from an earlier 
sword referred to as uchigatana (打刀). The 
katana was carried in a scabbard 
known as the saya.
(4) Tachi (太刀). The katana and tachi look very similar but can be 
distinguished by locating the mei 
(signature) on the sword’s nakago 
under the handle. When worn, the mei 
would be carved on that side of the tang that would face outward when placed in 
one’s obi. Because the tachi is worn with the cutting edge down 
opposite of the katana, the mei will be on the opposite side of the tang for this sword. The tachi was often considered as a spare 
blade used in battle.
There were tachi with variations from the classical 
weapon that included a larger tachi 
(see #1 above) known as ōtachi (ōdachi) and a shorter sword known as 
kōtachi (kōdachi). The kōdachi was similar in length 
to wakizashi (see #5 
below).
Shōtō  
(short swords)
(5) Wakizashi (脇差) 
The wakizashi, 
also referred to as wakizashi no 
kataka, translates as ‘sword inserted 
at one’s side’. The wakizashi 
typically had a blade of 1 to 2 shaku. Those closer to the length of a 
katana, were referred to as 
ō-wakazashi, while a shorter 
blade wakizashi was closer to the 
length of a tanto and known as ko-wakizashi. The wakizashi was worn with a katana only by samurai. Together, the pair were 
referred to as daisho which translates as ‘dai’ (big) and ‘sho’ (little), terms some of us are 
already familiar with because some of our advanced karate kata use these terms, such as Passai Dai and Passai Sho.
| Suzette practices Iaido at the Arizona Hombu, Mesa | 
(6) Tanto
The tanto was a knife worn by samurai of feudal Japan. One variety was 
that of the yoroi tōshi or dagger (about 8 
inches long) that had a greater thickness and used for piercing armor. Another 
tanto was the aikuchi (匕首). The 
aikuchi had the distinctive 
characteristic of no tsuba, similar 
to another dagger known as a kaiken. See also ken 
tanto below (#8). Even so, many tanto had tsuba, such as the tanto given to me by the Utah Shorin Kai at the last Gassuku (see photo to right of tanto with shaku 
measuring tape).
Miscellaneous 
(7) Chokutō. 
The chokutō had a straight blade and was 
introduced to Japan from Korea.
(8) Kusanagi no Tsurugi
This was a 
double-edged sword used in the 5th century in Japan and similar to 
the ken tanto (double-edged 
knife).
(9) Shirasaya (白鞘) 
Shirasaya translates as 
‘white scabbard’. This was a sword that had a plain wooded blade mount 
consisting of a saya (scabbard) with 
a tsuka (hilt) and traditionally used 
for storage when a sword blade was not needed for some time. In this form, it 
was not used on a battlefield.
(10) Shikomi-zue 
(仕込み杖) 
The shikomi-zue is a sword-stick. These 
typically contained a blade inside a cane (tsue) mounting for concealment. Some of 
these also concealed other weapons such as pepper powder (metsubuski), chains, hooks, etc.
Schools (dojo) and Styles (ryu)
Most 
Japanese swords are traced to one of five provinces in Japan that included Shoshu, Yamato, Bizen, Yamashiro and Mino. There were different styles and 
systems of Japanese swordsmanship and training. 
Kenjutsu, 
Kendo
Kenjutsu (sword techniques) is the martial art 
combat sword training. Similar to kenjutsu is kendo (way of the sword). Both tend focus on 
techniques of the sword after it has been drawn from the saya (scabbard). Kendo-ka practice with bamboo swords known as 
shinai, while wearing padded clothing known as bōgu and head gear 
known as men. Most kenjutsu use sword.
Iaijutsu (iaidō 居合道) and 
Battōjutsu (抜刀術) 
Iaijutsu, iaidō and battōjutsu are fast draw arts 
designed to develop fast draw with follow-up attacks with the sword. These arts 
are similar and generally only differ in training methods. For instance, battōjutsu incorporates 
multiple cuts following the draw of the sword; while iaidō emphasizes reaction to unknown 
scenarios, or a reaction to a sudden and swift attacks. In iaidō, the student begins training 
with a bokken (wooden practice sword) 
and later switches to a iaitō (dull-edged practice sword). 
Only very experienced practitioners use shinken (live blade) because of the 
extreme danger to oneself. Because iaidō is practiced with a weapon, whether it is a 
dull or live, nearly all training is by kata that includes drawing the 
weapon followed by cuts and finishing with ceremonial de-blooding of the blade 
and replacing the weapon back into the saya. Sparring is not part of 
iaidō, but is instead restricted to kendo. 
Another art that is similar to iaidō, is that of jōjutsu (training with a 4-foot staff). 
| Sojutsu (art of the spear), just one of many martial arts taught at the Seiyo no Shorin-Ryu Karate Kobudo Kai Hombu dojo in Arizona.  | 
Sword testing, known as tameshigiri was designed 
to test the blade’s sharpness and the practitioner’s abilities to cut a variety 
of materials. Today, we often see cuts on straw on a vertical pole. In the past, it was not uncommon for some Japanese 
to test on cadavers of executed criminals. Few iaidō schools practice tameshigiri.
Samurai arts are also part of Seiyo 
Shorin-Ryu Karate and Kobudo. In addition to iaido, our 
members train in jujutsu, hojojutsu, hanbojutsu, 
naginatajutsu and yarijutsu. 
Some Books On Nihonto
Craig, Darrell, 1981, Iai – the art 
of Drawing the Sword: Lotus Press, Tokyo, Japan, 257 p
Yumoto, J, M., 1958, The Samurai Sword – A Handbook: 
Charles E. Tuttle Co, Tokyo, Japan, 191 p
Warner, G. and Draeger, D.F., 1982, Japanese 
Swordsmanship – Technique and Practice: Weatherhill, Boston, 296 p
Zier, Don, J., 2000, Japanese Sword 
Drawing: Unique Publications, Burbank, CA, 317 p
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