MARCH, 1946 Privately founded under the name of Yokoi Kikai Kosakusho in Wakaba-tori, Kita-ku, Nagoya
JUNE, 1950 Developed a low-pressure air atomizing oil burner, and started manufacturing and marketing the burner under the 「 」 brand
MAY, 1953 Founded Yokoi Kikai Kosakusho Co., Ltd. with a capital of 1,000,000 yen
APRIL, 1961 Increased the capital to 1,500,000 yen
DECEMBER, 1963 Increased the capital to 3,000,000 yen
NOVEMBER, 1964 Increased the capital to 6,000,000 yen
FEBRUARY, 1966 Relocated our Head Office and factory to 2720-1, Ohorakuchi, Nakashidami, Moriyama-ku, Nagoya
MARCH, 1967 Increased the capital to 8,600,000 yen
MAY, 1968 Started to manufacture various types of gas burners
DECEMBER ,1970 Fully equipped with a 1.8m3 multipurpose test furnace and incidental equipment
FEBRUARY, 1973 Fully equipped with a 330m2 warehouse of steel frame with slate roofing and product inspection equipment
FEBRUARY, 1974 Increased the capital to 13,000,000 yen
JUNE, 1974 Increased the capital to 18,200,000 yen
OCTOBER, 1975 Fully equipped with a 231m² building of steel frame with slate roofing, a 6m3 experimental furnace for developing green burners, NOx measuring equipment, noise recorders and other incidental equipment
DECEMBER, 1975 Increased the capital to 21,000,000 yen
Introduced the employee stock ownership plan
DECEMBER, 1984 Increased the capital to 23,500,000 yen
DECEMBER, 1985 Increased the capital to 26,000,000 yen
MARCH, 1991 Added with a 380m² factory of steel frame with slate roofing
MARCH, 1996 Celebrated our 50th year in business
MARCH, 2016 Celebrated our 70th year in business
MARCH, 2021 Celebrated our 75th year in business
Remains in operation as of today.