Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 27, 2011
Patent Application Number
12638972
Date Filed
December 15, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A golf club includes a golf club head including a golf club head including a head body and a pair of balance adjustment portions formed in the head body, a plurality of weights detachably retained in each balance adjustment portion so that a three-dimensional gravity center position of the golf club head is adjusted, the weights serving as balancers and differing from each other in density and mass, and an IC chip accommodating portion which is formed in the head body or one of the balance adjustment portions to house an IC chip which stores information on a three-dimensional gravity center position of the golf club head.
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