Company Profile

Company Profile

Kojiya Sanzaemon was the operating business for “Fudasashi Gyo (exchange rice for money) in Kyoto 600 years ago. The company also produced and sold rice koji using the rice it received.

Tane-koji(seed koji) production is said to have been developed as a method to produce fine koji. This company is attributed with discovering the use of ash as previously described, although unfortunately, there are no records of this. However, there is a description of Kojiya Sanzaemon purchasing ash from an exclusive manufacturer for 19 generations. Hence, the fact that Kojiya Sanzaemon manufactured not only rice koji, but also produced Tane-koji(seed koji), likely seems true.

At first, Tane-koji(seed koji) was produced for use in their own household, and distributed to neighbors and relatives for free. But as demand for Tane-koji(seed koji) increased and the development of “hikyaku (express messengers),” distribution extended to Mikawa in the east and Nada in the west.

Name Kojiya Sanzaemon Co., Ltd.
Address 111-1 Uchida Muromachi, Toyohashi-shi, 441-8087
Phone No. 0532-31-03110532-31-0311
Representative President and Representative Director Yuichiro Murai Message from Yuichiro Murai
Establishment April 1965 (established in the Muromachi Era(1336-1573) )
Capital 50 million yen
Annual sales 200 million yen
Website https://www.koji-za.jp
Muromachi Era Establsihed in Kyoto (Approx. 600 years ago, traditionally 1394)
1952 Awarded by Kyoto Chamber of Commerce and Industry as the oldest shop within the prefectural industry department
1964 Ranked Yokozuna (champion) among ancient Kyoto established industries, hosted by The Kyoto Shimbun Co.,Ltd.
1965 Separated from Toyozo Murai (third son of the head house in Kyoto), previous president and established independent new company in Toyohashi
1970 Received transfer of trademark rights due to closing of business in Kyoto (head house).
(Toyozu Murai becomes the 27th head of the family)
1971 Construction of a new factory on the existing site
1980 Completed the First Phase Clean Factory
1985 Construction of Perfect Clean Factory began
1987 Transfer of president to chairman and managing director to president
Soichiro Murai is appointed to the post of President and Representative Director
1990 Achieved four crowns in the Tane-koji(seed koji) industry
(For sake, miso, soy sauce, and shochu)
1991 Chairman and Representative Director Toyozo Murai retires, appointed to the post of Honorary President
(Murai Soichiro becomes the 28th head of the family)
1995 Honorary President Toyozo Murai receives Special Society Award
2007 Soichiro Murai became a top advisor, and inherits the name Murai Sanzaemon
Yuichito Murai is appointed to the post of Representative Director
2016 Yuichiro Murai becomes the 29th head of the family.