Patent ID: 7371184

Claim:
A putter head comprising: a putter head body having a portion thereof connected to a distal end of a putter shaft; a laterally extending putter face formed on a front portion of the putter head body; a fine strip-shaped longitudinal line mark capable of being aligned with an imaginary ball hitting line at an address position, the longitudinal line mark being formed on an upper surface of the putter head body and extending rearwardly from a center of the putter face in the direction orthogonal to the putter face; and bold blurring marks formed on the upper surface of the putter head body disposed in a position such that the blurring marks sandwich the longitudinal line mark in a V shape, the blurring marks having profile lines arranged substantially symmetrically and non-parallel with respect to the longitudinal line mark, and the V-shaped bold blurring marks also having a line width larger than a line width of the fine longitiudinal line mark to make the blurring marks conspicuous compared to the fine longitudinal line mark.