1957 company turned to produce golf, tennis and badminton products. 196 1 year, the first "Mi Shan" badminton racket came out. Two years later, Mi Shan became an international brand badminton product manufacturer. 1969 Mi Shan launched the world's first aluminum badminton racket -# 700. Today, more than 80% athletes in the world use Yonex badminton rackets. 1973, Mi Shan entered the field of tennis racket production, which diversified the company's products. 1978, the company's new "YY" logo appeared, consisting of blue and green, which was quickly known by people in badminton and tennis circles. A year later, the company and trademark were changed to Yonex. That's YY = Mi Shan, the name of the manufacturer in the initial stage.