Golf club head

Details Golf club head Golf club head

2007-06-12

2011-11-01

Hunter, Alvin (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S349000

Reexamination Certificate

active

08047931

ABSTRACT:
A golf club head comprises a face portion improved in the durability by increasing the strength of the toe-side upper region of the face portion. The face portion is formed from a unidirectionally rolled plate of a titanium alloy having alpha phase, and at least in the toe-side upper region, the titanium alloy has alpha phase crystals of a hexagonal closely packed structure whose hexagonal symmetry axis (a) is oriented in the direction of a line (k) drawn between the sweet spot (SS) and the toe end point (TP).

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