Made in Japan raised textured gold prawn tea set

The set consists of teapot, sugar bowl, creamer, 6 cups and 6 saucers. The predominate colors are a pearlescent background with green and gold accents and rims. Each piece EXCEPT the 6 saucers features a raised texture gold prawn.  On each piece EXCEPT on the 6 saucers, there is a raised texture oval mark that appears on the teapot lid and sugarbowl lid and next to the gold prawn on the 6 cups. The teapot, sugar bowl and creamer are each marked on the bottom MADE IN JAPAN in gold lettering - there is no lettering or other identification on the bottom of the 6 cups.

All pieces are in excellent condition with no chips or flaws EXCEPT on very small chip on one tea cup and a chip on one saucer.  Any information would be greatly appreciated.  Thank you!