Group Companies About Us
Shinei Seiko Co., Ltd.
Shinei Seiko specializes in precision machining using NC lathes and machining centers.
We provide high-quality components for diverse industries, including fluid control, hydraulics,
semiconductor manufacturing, and defense.
- Company Name
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Shinei Seiko Co., Ltd.
- Location
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3730-33 Oaza Yamae, Chikushino City, Fukuoka, 818-0003, JAPAN
- Capital
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10 million JPY
- Established
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July 1, 1971 (Founded in May, 1960)
- Number of Employees
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11 (as of April 30, 2024)
- Main Businesses
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Processing of parts for precision machinery
WinTech Co, Ltd.
WinTech offers integrated production from cutting to grinding, delivering high-quality parts with short lead times.
Their expertise in cylindrical grinding is highly regarded and trusted for F1 engine components.
- Company Name
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WinTech Co, Ltd.
- Location
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11400-1021 Aza Harayama, Tamagawa, Chino City, Nagano, 391-0011, JAPAN
- Capital
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3 million JPY
- Established
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February 17, 2000
- Number of Employees
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11 (as of April 30, 2024)
- Main Businesses
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Cutting and grinding of various precision machine parts
KONNOPRO Co., Ltd.
KONNOPRO specializes in manufacturing turbo molecular pump components for semiconductor
equipment and bit shanks for civil engineering. By leveraging advanced CNC machining and in-house tooling design, they provide high-quality parts at competitive prices.
- Company Name
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KONNOPRO Co., Ltd.
- Location
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1165 Yoshihashi, Yachiyo City, Chiba, 276-0047, JAPAN
- Capital
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10 million JPY
- Established
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April 15, 1950 (Founded in 1933)
- Number of Employees
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25 (as of April 30, 2024)
- Main Businesses
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Precision machining of parts used in turbomolecular pumps
Manufacturing of bit shanks
Ohyama Foods Machinery Co., Ltd.
With over 100 years of expertise, Oyama Foods Machinery specializes in equipment for rice cakes and snacks. We provide integrated solutions—from plant design to consulting—supporting global food culture with agility.
- Company Name
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Ohyama Foods Machinery Co., Ltd.
- Location
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2-29-30 Kandaiji, Kanagawa-ku, Yokohama-shi,
Kanagawa, 221-0801, JAPAN
- Capital
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20 million JPY
- Established
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June 6, 1951 (Founded in March 3, 1923)
- Number of Employees
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39
- Main Businesses
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Design, manufacturing, and maintenance of machinery for mochi, rice crackers, and snack foods.