| 1964 |
Yukio Miyamaru leaves Sanyo Kogyo, comprehensive manufacturer of implements, and founds Miyamaru Attachment at 636-1, Teshiro-cho, Fukuyama-shi.
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| 1971 |
Opened Kyushu sales office in Kurume-shi, Fukuoka.
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| 1977 |
Reorganized to MIYAMARU ATTACHMENT CO., LTD.
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| 1981 |
Newly built head office and plant at 35-3, Myojin-cho, Fukuyama-shi and relocated.
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| 1986 |
Released industry's first plastic hiller "Yellow Hiller" and extended plant and head office.
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| 1988 |
Built second warehouse in Myojin-cho, Fukuyama-shi.
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| 1991 |
Opened Tohoku sales office in Ishikawa-gun, Fukushima.
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| 1994 |
Increased capital to 10,000,000 yen.
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| 1995 |
Released "New Yellow Hiller" as an improved model of "Yellow Hiller."
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| 1997 |
Released "Star Rotor DX" as a high-performance split type tilling rotor for 2 to 4 horsepower tending machines.
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| 2000 |
Released plastic ridge scoop "Blue Ridge Scoop."
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| 2003 |
Released "Super Green Ridger" enabling inside and outside heaping-up work.
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| 2006 |
Current president, Hirotaka Miyamaru becomes president.
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2007
|
Extended head office and plant.
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2010
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Released mower for tending machine rotary "Grass Cutter."
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2013
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Released mowers "Yellow Spiral" and "Blue Spiral."
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