Golf ball

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United States of America Patent

PATENT NO 8292759
SERIAL NO

12397706

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A golf ball 2 includes a core 4, an envelope layer 6, a mid layer 8 and a cover 10. A thickness Tm of the mid layer 8 is equal to or less than 1.0 mm. A thickness Tc of the cover 10 is less than 0.6 mm. The sum of the thicknesses Tm and Tc is equal to or less than 1.5 mm. A hardness Hc of the cover 10 is less than 40. The hardness Hs, the hardness Hm, and the hardness Hc satisfy the following formula (1).

description='In-line Formulae' end='lead'Hs>Hc>Hm  (1)description='In-line Formulae' end='tail'

The base material of the envelope layer 6 is ionomer resin. The base material of the mid layer 8 is polyurethane. The base material of the cover 10 is polyurethane.

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First Claim

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Patent Owner(s)

  • SRI SPORTS LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kamino, Kazuya Kobe, JP 79 404
Nakamura, Hirotaka Kobe, JP 79 480
Ohama, Keiji Kobe, JP 99 1522

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