Some medications of Ramsey numbers

The planar Ramsey number PR (G, H) is defined as the smallest integer n for which any 2-colouring of edges of Kn with red and blue where red edges induce a planar graph leads to either are red copy of G, or a blue H. In this note we study the value of the planar Ramsey numbers as well as their weak induced versions IPRw(G, H), for some classes of graphs Inparticular we calculate almost all values of PR (G, Kn) and IPRw(G, Kn) where G is connected.