Golf ball
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United States of America Patent
Stats
-
Sep 30, 2003
Grant Date -
Jan 3, 2002
app pub date -
May 14, 2001
filing date -
May 15, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A golf ball satisfies the following conditions (1) to (6): (1) the number of dimples is 360 to 492; (2) total volume enclosed by the dimples as expressed as a percentage of the volume of the golf ball, V.sub.R, is 0.715% to 0.825%; (3) the total surface area of the dimples as expressed as a percentage of the surface area of the golf ball, S.sub.R, is not less than 70%; (4) the cover has a Shore D hardness of 53 to 63; (5) the difference obtained through subtraction of JIS C hardness of the surface portion of the core from JIS C hardness of the cover is 0 to 20; and (6) initial velocity is in excess of 77.7 m/s (255 ft/s).
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