1940 |
Established Iwamoto Seibyosho in Uwahara-cho, Kawachinagano-city, Osaka Pref., Japan. |
1941 |
Reorganized Iwamoto Seibyosho into a general partnership company. |
1944 |
Changed the name of the general partnership company into Kongo Special Nail Mfg. |
1945 |
Established Iwamoto Seibyosho (wire rolling department) in Uwahara-cho, Kawachinagano-city, Osaka Pref., Japan. |
1958 |
Developed a method of inspecting nails in-house and started a full-fledged export of high-precision, high-quality nails for mechanical nailing. |
1960 |
Changed Kongo Special Nail Mfg. partnership company into Kongo Special Nail Mfg. Co., Ltd., and at the same time, amalgamated with Iwamoto Seibyosho (wire rolling department) to start integrated production from wire rolling to manufacturing nails. |
1963 |
Received export trade certification from the Ministry of International Trade and Industry (the current Ministry of Economy, Trade and Industry). |
1983 |
Started exporting air pins for steel plates. |
1995 |
Had our air pins for steel plates certified as pins for steel construction housing in the U.S. |
1999 |
Developed super stainless-steel pins for steel plates. |
2000 |
Received certification as a Kozai Club Standard Products Manufacturing Factory for the manufacturing of steel screw nails for steel construction housing. |
2002 |
Abolished the wire rolling department, and specialized in manufacturing special nails including non-ferrous nails. |
2010 |
Acquired the certification of ISO9001 (JQA-QMA14125). |