Tachi〈Meiyoshibo〉

Tachi Signed Yoshifusa: A Kamakura-Period Masterpiece of the Fukuoka Ichimonji School

Among the many exceptional Japanese swords designated as National Treasures, the tachi signed Yoshifusa held at Fukuyama Museum of Art stands out as a superb example of Kamakura-period craftsmanship. Forged by the renowned swordsmith Yoshifusa of the Fukuoka Ichimonji school during the 13th century, this blade embodies the peak of Bizen Province's swordmaking tradition. With its bold curvature, wide blade, and stunningly vivid chōji (clove-shaped) tempering pattern, the tachi is both a feat of metallurgical artistry and a window into the warrior culture of medieval Japan.

Today, this National Treasure resides at the Fukuyama Museum of Art in Hiroshima Prefecture, where it forms part of the celebrated Komatsu Yasuhiro Collection — one of the most remarkable assemblages of historic Japanese swords in any single institution in Japan.

The Fukuoka Ichimonji School and Swordsmith Yoshifusa

The Fukuoka Ichimonji school was one of the most prestigious lineages of swordsmiths in Japanese history. Based in the Fukuoka district of Bizen Province (present-day Setouchi City, Okayama Prefecture), the school flourished from the early to mid-Kamakura period (late 12th to mid-13th century). The name "Ichimonji" (meaning "one character") derives from the practice of inscribing just the single kanji character "一" on the tang of the blade as a signature.

Yoshifusa, along with Sukezane and Norifusa, is regarded as one of the three greatest masters of the Fukuoka Ichimonji school at the height of its prosperity. While earlier Ichimonji smiths produced relatively restrained tempering patterns influenced by the older Ko-Bizen tradition, the mid-Kamakura generation — led by Yoshifusa — developed an extraordinarily flamboyant style characterized by large, tightly packed chōji-midare hamon patterns. This dramatic aesthetic is considered one of the most gorgeous achievements among all classical Japanese swordsmiths.

Yoshifusa's importance is evidenced by the sheer number of his works that have received the highest cultural designations. Five of his tachi bear the National Treasure designation — a remarkable distinction that places him among the most celebrated swordsmiths in all of Japanese history. Some scholars believe that the variety of styles found in blades signed "Yoshifusa" suggests there may have been multiple smiths working under that name across different generations, though others attribute the range to the artistic evolution of a single, exceptionally versatile craftsman.

Description and Artistic Features of the Blade

The tachi signed Yoshifusa at Fukuyama Museum of Art is a magnificent example of mid-Kamakura swordsmithing at its most accomplished. It is forged in shinogi-zukuri (ridgeline construction) with an iori-mune (angled back). The blade is notably wide with a thick cross-section and features an ikubi-kissaki (compact, boar's-neck-shaped tip), lending it a powerful and commanding presence.

The curvature is concentrated at the base of the blade (koshi-zori), with the tang retaining its original shape — an important indicator that the sword has not been shortened or altered since it was forged nearly eight centuries ago. This preservation of the original form is relatively rare among surviving Kamakura-period swords and greatly enhances the blade's historical and artistic value.

The forging grain (kitae) is a tightly knit ko-itame (small wood-grain pattern), over which a vivid midare-utsuri (irregular reflection pattern) appears — a hallmark of the finest Bizen swords. The tempering pattern (hamon) is a spectacular ō-chōji with jūka-chōji (large clustered clove shapes), executed with tight nioi-guchi (boundary between hardened and unhardened steel). The pattern is further enriched by well-defined ashi and yō (active features within the tempered zone), while subtle nie (visible crystalline particles) can be seen near the base of the blade.

Both sides of the blade feature bō-hi (straight groove carvings) running the full length, with an additional koshi-hi (shorter groove) on one side. The tang bears a two-character signature "吉房" (Yoshifusa) inscribed in a compact style between the grooves, below the peg holes.

Why It Was Designated a National Treasure

This tachi was first designated as an Important Cultural Property on December 14, 1931, and was elevated to National Treasure status on February 2, 1955, under Japan's revised cultural properties protection system. Several factors contributed to this exceptional designation.

First, the blade represents the quintessential work of Yoshifusa at the peak of the Fukuoka Ichimonji school's artistic achievement. The large, flamboyant chōji hamon combined with vivid utsuri in the ji (blade surface) exemplifies what experts consider the most mature and perfected expression of Bizen swordsmithing. The overall condition of the blade and its tempering remain remarkably healthy despite nearly 800 years of age.

Second, the sword retains its original, unaltered form — the tang is ubu (unshortened) and preserves the original curvature, proportions, and signature placement as they were when the blade left Yoshifusa's forge. This intact condition provides invaluable information about the original aesthetic intentions and technical methods of mid-Kamakura swordsmiths.

Third, the blade's distinguished provenance adds further significance. It was once owned by the powerful warlord Toyotomi Hideyoshi, who bestowed it upon Takenokoshi Masanobu, a retainer of Tokugawa Ieyasu. It subsequently passed down through generations of the Takenokoshi family before eventually entering the Komatsu Yasuhiro Collection.

The Komatsu Yasuhiro Collection

The tachi signed Yoshifusa is part of the Komatsu Yasuhiro Collection, an extraordinary assemblage of 14 Japanese swords that includes seven National Treasures and six Important Cultural Properties. This collection was built by the late Komatsu Yasuhiro, founder of FP Corporation (a major food packaging company headquartered in Fukuyama City) and an Honorary Citizen of Fukuyama.

Following Mr. Komatsu's passing in 2017, his widow, Keiko Komatsu, donated the entire collection to Fukuyama City in November 2018, fulfilling his wish that these treasures be preserved together and made available for public appreciation. With seven National Treasure swords, the Fukuyama Museum of Art now holds the second-largest collection of National Treasure blades of any single institution in Japan, surpassed only by the Tokyo National Museum.

The collection also includes several other legendary blades, such as the tachi known as Kōsetsu Samonji (signed "Chikushū-jū Sa") and the tantō known as Juraku (also called Taikō Samonji), both bearing deep connections to the Tokugawa shogunate and other prominent historical figures. Together, these swords offer visitors a comprehensive overview of the finest achievements in Japanese sword craftsmanship from the Kamakura through Nanbokuchō periods.

Highlights and What to Look For

When viewing the tachi signed Yoshifusa in person, there are several features that reward careful observation.

The chōji hamon is the most immediately striking element. Look for the large, rounded "clove bud" shapes that cluster together along the cutting edge, varying in height and density. This pattern is sometimes described as resembling blossoming flowers — an apt metaphor for the decorative exuberance of mid-Kamakura Fukuoka Ichimonji swords.

Next, observe the midare-utsuri — a shadowy, cloud-like reflection pattern that appears in the flat of the blade between the temper line and the ridgeline. Under museum lighting, this effect can appear to shift and move as you change your viewing angle, creating a sense of depth and vitality within the steel itself.

The overall silhouette of the tachi is also noteworthy. The deep curve at the base, the wide blade, and the compact tip together create a profile that exudes both elegance and martial authority — the embodiment of the ideal warrior's sword from Japan's age of the samurai.

Finally, examine the tang area where Yoshifusa's signature is inscribed. The two compact characters placed between the grooves are a distinctive feature of this particular blade and offer a direct, personal connection to the craftsman who created it nearly 800 years ago.

Visiting Fukuyama Museum of Art

Fukuyama Museum of Art is conveniently located within Fukuyama Castle Park, just a five-minute walk (approximately 400 meters west) from the north exit of JR Fukuyama Station. The station is served by the Sanyo Shinkansen, including Nozomi express trains, making Fukuyama easily accessible from major cities such as Tokyo, Osaka, and Hiroshima.

The museum's collection extends well beyond swords, encompassing European modern art (including works by de Chirico and Chagall), Japanese modern painting (notably works by Kishida Ryūsei), and tea ceremony implements. The building itself is a modern, park-integrated design with a soaring atrium hall and a tea room overlooking Fukuyama Castle — well worth exploring even beyond the sword galleries.

Please note that the Komatsu Yasuhiro Collection swords are displayed on a rotating basis. Not all 14 blades are on view at all times, so it is advisable to check the museum's official website or contact them in advance to confirm which swords are currently on display during your planned visit.

Nearby Attractions

Fukuyama and its surroundings offer a wealth of cultural and scenic experiences that pair wonderfully with a visit to the museum.

Fukuyama Castle, immediately adjacent to the museum, was originally built in 1622 and underwent a major renovation completed in 2022 to mark its 400th anniversary. The castle tower houses a history museum with exhibits on the region's samurai heritage. Remarkably, the castle is visible from the Shinkansen platform at Fukuyama Station — one of the few castles in Japan you can see from a bullet train.

The historic port town of Tomonoura, about 30 minutes by bus from Fukuyama Station, is a designated Japan Heritage site and one of the most atmospheric traditional harbors on the Seto Inland Sea. Its well-preserved Edo-period streetscape, temples, and seaside scenery have inspired artists and filmmakers for generations.

The nearby city of Onomichi, accessible in about 20 minutes by train, is famous for its hillside temple walk, vintage shopping streets, and as the starting point of the Shimanami Kaido cycling route across the Seto Inland Sea to Shikoku. For those with more time, the city of Hiroshima and its iconic Itsukushima Shrine on Miyajima Island are roughly one hour away by Shinkansen.