1955

• "Daiwa House Industry Co., Ltd." was established
  (5th April).[→details]
• "Pipe House"the first product carved out the business,
  was put on sale.[→details]

1957

• Constructed storehouse of Tamon Shuzou Nishinomiya Factory.
  Obtained the qualification authentication from Japan Lightweight Iron
  Construction Association,to firstly initiate the road on the way to really
  use steel pipe structure to buildings in Japan.

1959

• Developed Mobile Class Room as a method to resolve the lack
  of class room because of baby booming after the War.
• Developed "Midget House"a former of prefabricated house,
  as a class room that could be built within just 3 hours,
  it was a hit greatly.[→details]