Golf club

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United States of America Patent

PATENT NO 9119994
SERIAL NO

14094111

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A club 2 includes a head 4, a shaft 6 and a grip 8. A club length L1 is 45 inches or greater and 48 inches or less. A ratio (Wh/Wc) of a head weight Wh to a club weight Wc is equal to or greater than 0.71. A moment of inertia Ix about an axis of a swing is equal to or less than 6.90×103 (kg·cm2). However, when the club weight is defined as Wc (kg); an axial-directional distance between a grip end and a center of gravity of the club is defined as Lc (cm); and a moment of inertia about the center of gravity of the club is defined as Ic (kg·cm2), the moment of inertia Ix (kg·cm2) is calculated by the following formula (1).

description='In-line Formulae' end='lead'Ix=Wcx(Lc+60)2+Ic  (1)description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO RUBBER INDUSTRIES LTDKOBE CITY JAPAN'S HYOGO CENTRAL FLANK BANG TOWN 3 CHOME 6 NO 9 KOBE-SHI HYOGO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakamura, Takashi Kobe, JP 845 11645

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