History
| 1959 | President Teiji Yamamoto founded Toukou Company, handling rubber, asbestos, leather and plastic goods |
|---|---|
| 1959 | The Yamamoto Industry Company was founded in Tokyo |
| 1966 | Relocated head office for business expansion |
| 1967 | Established a warehouse near the head office |
| 1972 | Established an assembly factory and warehouse for hydraulic hoses |
| 1980 | Relocated head office for business expansion |
| 1983 | Relocated assembly factory and setup additional equipment due the increasing demand for hydraulic hoses |
| 1990 | Established Kansai branch in Hyogo Prefecture |
| 1991 | The President Teiji Yamamoto assumed the position of Chairman lsao Yamamoto assumed the position of President |
| 1994 | Relocated Kansai branch for business expansion |
| 2001 | Corporate name was changed to Do-Yamamoto Co., Ltd. |
| 2005 | Introduced five-inch assembly machine |
| 2005 | Relocated head office for business expansion |
| 2008 | Celebrated our 50th anniversary |
| 2010 | Introduced new hydraulic and nitrogen tester |
| 2011 | Established a new warehouse for business expansion Amount of stock was increased to more than 20,000 meters, around more than 100,000 meters in total |
| 2012 | Established Thai-Yamamoto Co., Ltd. in Thailand |
| 2013 | Relocated head office for business expansion |
| 2014 | Relocated Kansai branch for business expansion |
| 2018 | The President lsao Yamamoto assumed the position of Chairman Ryo Kawaguchi assumed the position of President |
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