commenced the design and study of pump technology by Mr. Yoshiaki Koarai. the production and sales of various pumps for industries and civilian service at the location of 4-chome, Saiwai-Cho, Nishi-Ku, Osaka, Japan (Head Quarter and the main Plant) under a private undertaking owned by Yoshiaki Koarai/ who is the founder of Arai Pump Manufacturing Company. The company name “Arai†has come from his family name - KoArai.
1932 established the second Plant at 2-chome, Tsumori, Nishinari-Ku, Osaka, Japan, where is the same location as the present Main Plant, in proportion to the increase of order.
Arai Pump's superior technology and quality and designated as Japanese Navy- controlled company and engaged in the manufacturing of various pumps such as Fuel Charge Pumps being loaded into the First Class Aircraft Career, Battle Ship and First Class Cruise under the control of Japanese Navy Technical Department.
Corporation named Arai Pump Mfg. Co., Ltd. with the respect to the capital, limited to 800,000 J.Yen (investment in Kind) owing to the regulation of financial adjustment and commenced the development and study of Process Pumps for Refinery Service by our own technology.Us-controlled oil refining industries, commenced immediately into the manufacturing of the process pumps for refinery and petrochemical plant by our own technical development and have not collaborated with the foreign technical developments.
The management by the second president of Mankato Koarai/Mr., designated the production system as One-Off Flexible production System to concentrate the manufacturing of Heavy-Duty process pumps for refinery, petrochemical and gas-processing industries and the research and development of custom-engineered heavy-duty pumps.
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