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May-21 Company established in Nagoya-city by Denjiro Hayashi.
Jan-25 Moved to 40,IKEUCHI-CHO,ATUTA-KU,NAGOYA-CITY
Feb-45 Evacuated to the suburbs, war ended.
Jan-48 Moved back to 40 IKEUCHI-CHO, ATSUTA-KU, NAGOYA-CITY, company rebuilt.
Aug-50 Reorganized to a corporation (capital 0.05million JPY).
Nov-51 The first president Denrijiro Hayashi passed away, Takeo Hayashi inaugurated as second president.
Jun-71 Second president Takeo Hayashi passed away, Sonoko Hayashi inaugurated as third president.
Jun-75 สปริงลาน forming machine (import machine) started to operate.
Apr-81 Original wire rod bending machine started to opreate. 
Oct-82 Third president Sonoko Hayashi inaugurated as chairman, Sinichiro Hayashi inaugurated as forth president.
Mar-83 Numerical control สปริงลาน forming machine (self-developed) started to operate. 
Mar-84 NC wire rod bending machine started to operate (self-developed, a new design for practical use)
Dec-90 New factory HIRATA completed at Katsuga, Hirata-cho, Kaizu-city, GIFU 
Jun-91 HIRATA factory completed and started the business
Jun-92 Auto pipe tip bending machine started to operate.
Sep-93 HIRATA factory second construction completed.
Nov-97 Hayashi Spring (suzhou)CO., LTD. established
Jul-98 Suzhou M.L wire rope CO., LTD. established 
Jul-99 Manufacture departments unified in HIRATA factory.
Mar-01 High-speed สปริงลาน forming machine started to opreate.
Apr-01 ISO9001 approved. 
Oct-02 ISO9002 approved
Dec-02 High-speed pipe bending machine started to operate.
Jun-03 Awarded a prize of TPM challenge 
Aug-03 MASAHIRO HAYASHI inaugurated as fifth president.
Nov-03 ISO 14001 approved.
Sep-04 Increased the capital to 50million JY
Apr-05 No2 & No3 High speed สปริงลาน forming machines started to operate.
Mar-06 The large-scale high-speed pipe bending machine started to operate. 
Sep-08 Suzhou M.L Wire Rope CO., LTD moved to new factory
Apr-09 Hayashi Spring CO., LTD (Representative Office) established in Bangkok
May-11 90th anniversary of establishment
Nov-11 Hayashi Spring (Suzhou) CO., LTD moved to new factory
Nov-11 Hayashi Spring (Thailand) CO., LTD established
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