From Wikipedia WRT the "Derby" years in which they owned and marketed Nishiki brand bikes:
"...These Nishiki models, though manufactured outside Japan (e.g., in Taiwan, by
Giant Bicycles and possibly in Italy by
Colnago, Olmo or Viner) often carried the name Nishiki and some of the same model names as had been used on the Kuwahara-built bicycles."