stationeryJuly 01, 2026

Ogatsu Suzuri

Ogatsu Suzuri (雄勝硯) is a stationery craft — specifically an inkstone — produced in the Ogatsu district of Ishinomaki City, Miyagi Prefecture, with origins tracing to at least the Muromachi period. The craft was designated as a traditional craft by Miyagi Prefecture in 1982 and by the national government (METI) in 1985.

History

According to oral tradition, inkstone-making techniques were transmitted to Ogatsu from present-day Higashiyamacho in Ichinoseki City, Iwate Prefecture, during the Muromachi period. A document based on the genealogy of the Okuda inkstone-maker family records that the first Sendai domain lord, Date Masamune, visited the Oshika Peninsula for a deer hunt during the Genna era (1615–1624) and took notice of the Ogatsu stone. Subsequently, the second Sendai domain lord, Date Tadamune, made Ogatsu inkstone craftsmen official domain artisans and prohibited general quarrying by designating the Ogatsu stone area as otome-yama (a restricted mountain). The Sendai domain's topographical record Fuunai Fudoki, compiled during the Edo period, identifies Ogatsu inkstones as a specialty product of elegance.

In 1875, a Tokyo merchant commercialized slate board (sekiban) manufacturing in Ogatsu, and prior to World War II, slate board and roof slate production were more significant than inkstone production in the region. After World War II, demand for slate boards and roof slates fell sharply as they were replaced by notebooks and corrugated metal roofing respectively. Production of inkstones for schoolchildren using Ogatsushi began in the early 1950s. The peak period of inkstone production in Ogatsu occurred around 1955, when approximately 200 inkstone craftsmen worked in the area spanning the Myojin to Misotsukuri district.

From around 1953, artificial inkstones developed by a chemical industry company in Osaka began spreading as schoolchildren's inkstones, providing competition to natural stone products. In the 1970s, inexpensive natural stone inkstones began to be imported from China and South Korea. According to a 2005 survey, the majority of inkstone products handled in Ogatsu were made from Chinese stone materials, mainly for elementary school calligraphy sets, and only 10% of total inkstone production in Ogatsu was made from Ogatsushi, classified as mid-grade or high-grade products.

The 2011 Great East Japan Earthquake damaged inkstone factories and caused craftsmen to leave the production area, representing a significant disruption to the craft.

Techniques & Production Process

Ogatsu Suzuri is made from Ogatsushi, a black, lustrous, hard stone material classified as mudstone or slate. Ogatsushi is found in the upper Permian strata of the Tome Formation in the Kitakami mountain system and is extracted by open-pit mining, a method that enables large-scale supply. The stone has uniform particle size and high resistance to compression and bending, as well as high resistance to chemical and age-related changes. These physical properties make it well suited for inkstone production. Estimated reserves of Ogatsushi are said to be 5 million tons. In addition to inkstones, Ogatsushi has historically been used for craft items and natural slate roofing materials, and more recently for high-grade tableware processed as Ogatu stone plates.

How to Identify Ogatsu Suzuri

Ogatsu Suzuri inkstones are characterized by uniform mineral content derived from the consistent particle size of Ogatsushi, and by fine ridges on the grinding surface known as hōbō. The stone itself is black and lustrous in appearance. Beyond inkstones, Ogatsushi's properties have made it suitable for architectural applications: the stone was used for the roofing of the Tokyo Station Marunouchi building (in combination with Spanish slate), the old Ministry of Justice building (Hōmushō Kyū Honkan), and the Jinchōkan Moriya Shiryōkan (Moriya Historical Museum).

The Craft Today

The Ogatsu inkstone craft has undergone a significant shift in its primary product. Following the decline in demand for school inkstones due to competition from artificial inkstones and imported stone products — and further disruption from the 2011 Great East Japan Earthquake, which damaged factories and led craftsmen to leave the area — Ogatu stone plates processed as high-grade tableware have become the main product of the region, replacing inkstones as the principal output. Ogatsushi with its estimated reserves of 5 million tons continues to be extracted by open-pit mining in the Ogatsu district of Ishinomaki City, Miyagi Prefecture (formerly Ogatsu Town). For those interested in the broader context of Japanese Craft Stationery: The Complete Guide, Ogatsu Suzuri represents one of Japan's nationally designated inkstone traditions alongside crafts such as Akama Suzuri: Fine Ink Stone from Yamaguchi. Traditional calligraphy tools from other regions, including Kumano Fude: Traditional Writing Brushes from Hiroshima, Nara Fude: Traditional Calligraphy Brushes from Nara, and Toyohashi Fude: Quality Brushes from Aichi, form part of the same national tradition of craft stationery production.

Frequently Asked Questions

What is Ogatsu Suzuri made from?

Ogatsu Suzuri inkstones are made from Ogatsushi, a black, lustrous mudstone or slate found in the upper Permian strata of the Tome Formation in the Kitakami mountain system, quarried by open-pit mining in the Ogatsu district of Ishinomaki City, Miyagi Prefecture.

When was Ogatsu Suzuri designated as a traditional craft?

Ogatsu Suzuri was designated as a traditional craft by Miyagi Prefecture in 1982 and subsequently designated as a national traditional craft by the Japanese government in 1985.

What are the distinguishing features of Ogatsu Suzuri inkstones?

Ogatsu Suzuri inkstones are identified by uniform mineral content, reflecting the consistent particle size of Ogatsushi, and by fine ridges on the grinding surface called hōbō. The stone is black and lustrous in appearance.

How did the craft change after World War II?

After World War II, demand for the slate board and roof slate products that had previously dominated Ogatsu's stone industry declined sharply. Production of inkstones for schoolchildren using Ogatsushi began in the early 1950s and reached a peak around 1955 with approximately 200 craftsmen. Competition from artificial inkstones (from around 1953) and imported inkstones from China and South Korea (from the 1970s) reduced demand. According to a 2005 survey, only 10% of inkstone production in Ogatsu used Ogatsushi, while the majority used Chinese stone materials.

What is the main product made from Ogatsushi today?

Following damage from the 2011 Great East Japan Earthquake and the long-term decline in inkstone demand, Ogatu stone plates processed as high-grade tableware have become the main product derived from Ogatsushi, replacing inkstones as the primary output of the region.