Is this mark Ryozan?

[Stan]

Hi Peter, In one lot their was 19 pieces, not including the lids for the tea pot, creamer and sugar jar. this mark is on 4 small plates, I think they are Ryozan.

[peterp]

Ｙes, Stan. ( 亮山 )

[Stan]

Thank you Peter, this is the first time that I have had his works, thanks again.