Our History
Our story began in 1858, in the final years of Japan’s Edo period, the year the Tokugawa shogunate signed the Treaty of Amity and Commerce with the United States. It was then that Kadoya Mills was founded on Shodoshima, an island in Kagawa Prefecture in the Seto Inland Sea.
Our name has a simple, true-to-life origin: the original shop and mill stood on a street corner, or kado in Japanese.
Sesame has been our sole focus ever since.
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1858
Kadoya Mills is founded in 1858 on Shodoshima Island, Kagawa Prefecture. The production and sale of sesame oil begin.
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May
1957Kadoya Mills and Ozawa Shoten, its distributor in eastern Japan (now Ozawa & Company Limited), jointly establish Kadoya Sesame Mills Incorporated to expand the business. The head office opens at 357, 1-chome, Nishiosaki, Shinagawa-ku, Tokyo.
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Sept.
1961The Osaka Branch opens as a sales base.
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Oct.
1961A 39,600 m² site is acquired at Tonosho Port on Shodoshima, and a new factory is completed to support business growth.
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1965
KADOYA begins selling Sei Goma Abura, a 100% sesame oil, for household use.
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1967
With a newly designed label, Pure Sesame Oil goes on sale for household use.
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Feb.
1967The Fukuoka Branch opens.
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April
1969Branches open in Sapporo, Sendai and Nagoya.
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Oct.
1973The Hiroshima Branch opens.
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Aug.
1974Branches open in Matsumoto, Kanazawa and Takamatsu.
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Jan.
1976The Kanazawa Branch closes.
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April
1976The company name is changed to Kadoya Sesame Mills Incorporated.
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April
1977The Sagamihara Sales Office opens.
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March
1978The Sapporo, Hiroshima, Matsumoto and Takamatsu branches become sales offices.
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Aug.
1978The Kumagaya Sales Office opens.
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April
1979The Fukuoka Branch becomes a sales office.
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May
1980The Kumagaya Sales Office moves to Omiya and is renamed the Omiya Sales Office.
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March
1981The Sagamihara Sales Office closes.
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Aug.
1991The head office moves to 8-2-8 Nishigotanda, Shinagawa-ku, Tokyo.
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Nov.
1993The company’s shares are registered for over-the-counter trading with the Japan Securities Dealers Association.
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May
1995The head office’s Tokyo Sales Department becomes the independent Tokyo Branch.
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Aug.
2000The share trading unit is reduced from 1,000 shares to 100 shares.
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Aug.
2000ISO 9002 certification is obtained, followed by a transition to ISO 9001 in August 2003.
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2002
The Konjakukan Museum, a heritage gallery, opens at the Shodoshima Factory.
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Dec.
2004The company ends its over-the-counter registration with the Japan Securities Dealers Association and lists on the JASDAQ Securities Exchange.
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Oct.
2005The Omiya Sales Office is merged into the Tokyo Branch. The Matsumoto Sales Office moves to Nagano and is renamed the Nagano Sales Office.
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Oct.
2006A logistics warehouse opens in Kobe.
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Sept.
2009The Nagano Sales Office merges with the Tokyo Branch, while the Takamatsu Sales Office merges with the Hiroshima Sales Office.
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April
2010Following the merger of the JASDAQ and Osaka securities exchanges, the company is listed on OSE JASDAQ, subsequently known as TSE JASDAQ Standard.
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March
2012The company lists on the Second Section of the Tokyo Stock Exchange.
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April
2012Kosher certification is obtained.
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June
2012The company delists from OSE JASDAQ Standard.
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April
2013The company lists on the First Section of the Tokyo Stock Exchange.
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April
2015The Hiroshima and Fukuoka sales offices become branches.
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Aug.
2015ISO 9001 certification is voluntarily relinquished.
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Sept.
2015The Shodoshima Factory obtains FSSC 22000 certification.
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April
2016Halal certification is obtained.
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March
2017The Kobe facility closes.
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Nov.
2017KADOYA acquires shares in Katagi Foods Co., Ltd., making it a subsidiary.
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Feb.
2018KADOYA wins a bid for an 83,823 m² site for a new factory in Sodegaura, Chiba Prefecture.
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Feb.
2020The Sodegaura Factory is completed.
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Feb.
2021Sukoyaka Sesame Oil is launched as a Food for Specified Health Uses (FOSHU). The Sodegaura Factory obtains FSSC 22000 certification.
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March
2022The Sendai Branch and Katagi Foods’ Sendai Sales Office move into a shared new office in Aoba-ku, Sendai. Katagi Foods’ Fukuoka Sales Office is consolidated with KADOYA’s existing Fukuoka Branch at the latter’s premises.
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April
2022Following the Tokyo Stock Exchange’s market restructuring, the company moves from the First Section to the Standard Market.
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Feb.
2023The head office and Tokyo Branch move to 5-1-18 Kitashinagawa, Shinagawa-ku, Tokyo.
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Dec.
2025Overseas subsidiary Kadoya America Inc. is established.