The story
In 1941, the Hasegawa factory opened as a manufacturer of wooden teaching materials, such as a woodwork models. It entered into the plastic model field in 1961, with its first plastic model "glider" airplane models. In the following June 1962, the "1/450 battleship Yamato" was released after high development costs and became a success with about 150,000 units sold in the same year, and continuing success in the following years. The profitable line of 1/90 F-104 Starfighter and 1/70 P-51 Mustang model kits became the turning point which prompted Hasegawa to turn away from woodwork models and to plastic models completely.
From Wikipedia’s article on Hasegawa Corporation, shared under CC BY-SA 4.0.4