There are scillions of Made in Japan marks and a great book that identifies most of them, I recommend that you look into it to identify your collectible piece.
Authentic Delftware, made in The Netherlands, is hand painted by experienced artists and glazed in a centuries-old process.
Petrus Regout founded a glass and crystal works company in Maastricht, Holland in 1834. Since 1974 Maastricht has been part of the British company Reed International. It seems likely that any item marked "Made in Japan" was probably made or imported after 1921. In 1845 James Meakin worked at Newtown Works, Uttoxeter Road, Longton.
1836 - 1870 - Petrus Regout made dinnerware in the style of English Ironstone decorated with primarily single color (blue, black, violet or red) transfer printed patterns with scenic and romantic themes. In 1874 another son, Alfred, founded Alfred Meakin at Tunstall.
It combines well with both glazes and paint, and can be modelled very well, allowing a huge range of decorative treatments in tablewares, vessels and figurines. The European name, porcelain in English, come from the old Italian porcellana (cowrie shell) because of its resemblance to the translucent surface of the shell.
Properties associated with porcelain include low permeability and elasticity; considerable strength, hardness, toughness, whiteness, translucency and resonance; and a high resistance to chemical attack and thermal shock.