This is "ROBOT WARRIOR" from 1984. I CAD-modeled it in Solidworks by checking similarity to reference photos.
With a little internet searching, I found one of my first toys from my pre-school childhood! I was only remembering the way it looks like a samurai, fully black and there were a glowing shield and transparent sword of it.
Google helped me with these keywords and I gathered some photos of this toy on ebay and antique toyshops. It is a toy that sold by Soma toys in 1984.
Also found a youtube video too!
Hope you like it.