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US 2002/0002084 A1Published application
Golf club head
AssigneeThe Yokohama Rubber Co., Ltd.
InventorMasahiko Miyamoto
Life of this patent
Estimating the term…
Abstract
Disclosed is a golf club head, in which a face surface is divided into upper and lower portions by a boundary line across a position of a sweet spot thereof, a roll radius of the upper portion is set at 305 mm or less, and a roll radius of the lower portion is set at 310 mm or more.
Claims6
A golf club head having a face surface divided into upper and lower portions by a boundary line across a position of a sweet spot thereof,
- wherein a roll radius of said upper portion is set at 305 mm or less, and a roll radius of said lower portion is set at 310 mm or more.
Dependencies are inferred from the claim text.