Golf ball
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United States of America Patent
Stats
-
Jan 19, 2021
Grant Date -
Feb 22, 2018
app pub date -
Oct 27, 2017
filing date -
Aug 7, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An object of the present invention is to provide a golf ball traveling a great flight distance. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a ratio (t2/t1) of a time (t2) to a time (t1) of 1.05 or more in a hitting test using a driver (at a head speed of 40 m/sec), wherein the time (t1) is a time taken from a moment that the driver begins to contact with the golf ball to a moment that the golf ball reaches a maximum deformation amount, and the time (t2) is a time taken from the moment that the golf ball reaches the maximum deformation amount to a moment that the golf ball leaves the driver.
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