Patent ID: 7220190
Filing Date: 2007-05-22
Classification: A63B

Abstract:
1. A golf club head having a face portion that hits a ball, said face portion comprising: a center thick portion of substantially uniform thickness that forms a center region, which includes the sweet spot and has the greatest thickness; a varying thickness portion in annular form, which is formed around said center thick portion and has a thickness that gradually decreases toward the periphery of the face portion; and a peripheral thin portion provided around said varying thickness portion and having a thickness smaller than that of said center thick portion, wherein said peripheral thin portion includes a first thin portion of which the thickness is the smallest and is substantially constant, and a second thin portion of which the thickness is greater than that of the first thin portion and is substantially constant, and said first thin portion is provided in at least one of a sole side portion, a toe side portion and a heel side portion of the peripheral thin portion.