Earliest decoration of porcelain was blue & white, hand painted in under glaze blue.
This method is
sometsuke in Japanese. Iroe also known as akae, is a colored
porcelain. Both are decorated in over glazed colors.
Nishiki-de means a style of a
nishiki weaving which has multi color decoration with gold. When a porcelain has
both under glaze blue and over glaze multi colors, this can be called as
some-nishiki,
a combination of two layers.  
Decoration Colors & Methods
Iroe Bowl (colors)
Sometsuke & Iroe
Sometsuke Plate (blue & white)
Sumihajiki
A resist method of blue color design
outlined by sumi ink which remains in white
Dami
A method of coloring inside of an
outlined space by using a thick brush
IMARI
Shapes & Sizes
Plates
Bowls
Other Shapes
Designs
Sections
Hand Painted Decoration
Kuchibeni
Kuchibeni, a brown color trim is a method to apply iron glaze on
the rim of the plate or the bowl.
Coloring Techniques
Sometsuke Plate      
1780 - 1820     No.226    
Sengaki
Sengaki means a drawing constructed with thin lines. It looks lmore like
a pencil drawing instead of a water color painting.
Somenishiki Bowl