They initially sold imported bearings but by 1935 had begun production of Koyo branded bearings under the name Koyo Seiko Co. , Ltd .
Koyo Seiko ( Osaka , Japan ) was established as a private company by Zenichiro Ikeda .
Koyo Seiko initially sold imported bearings but by 1935 had begun production of Koyo Seiko branded bearings under the name Koyo Seiko         .
Koyo Seiko ( Osaka , Japan ) was established as a private company by Zenichiro Ikeda .