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.

  1. 1858

    Kadoya Mills is founded in 1858 on Shodoshima Island, Kagawa Prefecture. The production and sale of sesame oil begin.

  2. May
    1957

    Kadoya 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.

  3. Sept.
    1961

    The Osaka Branch opens as a sales base.

  4. Oct.
    1961

    A 39,600 m² site is acquired at Tonosho Port on Shodoshima, and a new factory is completed to support business growth.

  5. 1965

    KADOYA begins selling Sei Goma Abura, a 100% sesame oil, for household use.

  6. 1967

    With a newly designed label, Pure Sesame Oil goes on sale for household use.

  7. Feb.
    1967

    The Fukuoka Branch opens.

  8. April
    1969

    Branches open in Sapporo, Sendai and Nagoya.

  9. Oct.
    1973

    The Hiroshima Branch opens.

  10. Aug.
    1974

    Branches open in Matsumoto, Kanazawa and Takamatsu.

  11. Jan.
    1976

    The Kanazawa Branch closes.

  12. April
    1976

    The company name is changed to Kadoya Sesame Mills Incorporated.

  13. April
    1977

    The Sagamihara Sales Office opens.

  14. March
    1978

    The Sapporo, Hiroshima, Matsumoto and Takamatsu branches become sales offices.

  15. Aug.
    1978

    The Kumagaya Sales Office opens.

  16. April
    1979

    The Fukuoka Branch becomes a sales office.

  17. May
    1980

    The Kumagaya Sales Office moves to Omiya and is renamed the Omiya Sales Office.

  18. March
    1981

    The Sagamihara Sales Office closes.

  19. Aug.
    1991

    The head office moves to 8-2-8 Nishigotanda, Shinagawa-ku, Tokyo.

  20. Nov.
    1993

    The company’s shares are registered for over-the-counter trading with the Japan Securities Dealers Association.

  21. May
    1995

    The head office’s Tokyo Sales Department becomes the independent Tokyo Branch.

  22. Aug.
    2000

    The share trading unit is reduced from 1,000 shares to 100 shares.

  23. Aug.
    2000

    ISO 9002 certification is obtained, followed by a transition to ISO 9001 in August 2003.

  24. 2002

    The Konjakukan Museum, a heritage gallery, opens at the Shodoshima Factory.

  25. Dec.
    2004

    The company ends its over-the-counter registration with the Japan Securities Dealers Association and lists on the JASDAQ Securities Exchange.

  26. Oct.
    2005

    The Omiya Sales Office is merged into the Tokyo Branch. The Matsumoto Sales Office moves to Nagano and is renamed the Nagano Sales Office.

  27. Oct.
    2006

    A logistics warehouse opens in Kobe.

  28. Sept.
    2009

    The Nagano Sales Office merges with the Tokyo Branch, while the Takamatsu Sales Office merges with the Hiroshima Sales Office.

  29. April
    2010

    Following the merger of the JASDAQ and Osaka securities exchanges, the company is listed on OSE JASDAQ, subsequently known as TSE JASDAQ Standard.

  30. March
    2012

    The company lists on the Second Section of the Tokyo Stock Exchange.

  31. April
    2012

    Kosher certification is obtained.

  32. June
    2012

    The company delists from OSE JASDAQ Standard.

  33. April
    2013

    The company lists on the First Section of the Tokyo Stock Exchange.

  34. April
    2015

    The Hiroshima and Fukuoka sales offices become branches.

  35. Aug.
    2015

    ISO 9001 certification is voluntarily relinquished.

  36. Sept.
    2015

    The Shodoshima Factory obtains FSSC 22000 certification.

  37. April
    2016

    Halal certification is obtained.

  38. March
    2017

    The Kobe facility closes.

  39. Nov.
    2017

    KADOYA acquires shares in Katagi Foods Co., Ltd., making it a subsidiary.

  40. Feb.
    2018

    KADOYA wins a bid for an 83,823 m² site for a new factory in Sodegaura, Chiba Prefecture.

  41. Feb.
    2020

    The Sodegaura Factory is completed.

  42. Feb.
    2021

    Sukoyaka Sesame Oil is launched as a Food for Specified Health Uses (FOSHU). The Sodegaura Factory obtains FSSC 22000 certification.

  43. March
    2022

    The 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.

  44. April
    2022

    Following the Tokyo Stock Exchange’s market restructuring, the company moves from the First Section to the Standard Market.

  45. Feb.
    2023

    The head office and Tokyo Branch move to 5-1-18 Kitashinagawa, Shinagawa-ku, Tokyo.

  46. Dec.
    2025

    Overseas subsidiary Kadoya America Inc. is established.